This document lists all of the SI, metric, American, English, historical, and ancient measurements currently recognized by Entisoft Units. It includes the abbreviations, synonyms, formal names, and physical description of those measurements where appropriate. This list also includes the prefixes and global text replacements which are recognized by Entisoft Units. Each measurement is listed twice--once alphabetically by name, and once alphabetically under the category of physical measurement it represents.

" = " inch " $ (US dollar) = $ (currency; base unit) % (percent) = .01 ' = " foot " *approx = "" *avg = "" *exact = "" / = replacement for " per " ^2 = replacement for "squared" ^3 = replacement for "cubed" A (ampere) = A (electric current; base unit) a (atto) = 1E-18 (prefix) a = are (area) abA = abampere (electric current) abamp = abampere (electric current) abampere = 10 A (electric current) abC = abcoulomb (electric charge) abcoulomb = 10 C (electric charge) abF = abfarad (capacitance) abfarad = 1000000000 F (capacitance) abH = abhenry (inductance) abhenry = .000000001 H (inductance) abmho = 1000000000 mho (conductance) abohm = .000000001 ohm (electric resistance) absolute temperature = thermodynamic temperature (thermodynamic temperature) absolute viscosity = dynamic viscosity (dynamic viscosity) ABSORBED DOSE gray = J/kg (derived unit) Gy = gray Rad = .01 Gy absorbed dose = specific energy (specific energy) abV = abvolt (electric potential) abvolt = .00000001 V (electric potential) ACCELERATION acceleration = m/s^2 (category unit) acceleration linear = acceleration freefall = g g (gravitational acceleration) = 9.80665 m/s^2 galileo = .01 m/s^2 gravitational acceleration = g linear acceleration = acceleration acceleration = m/s^2 (acceleration; category unit) acceleration angular = angular acceleration (angular acceleration) acceleration linear = acceleration (acceleration) acoustical energy = energy (energy) acoustical intensity = heat flux density (heat flux density) acoustical power = power (power) acre = 4840 yard^2 (area) ACTIVITY becquerel = 1/s (derived unit) Bq = becquerel Ci = curie curie = 37000000000 Bq rutherford = 1000000 Bq activity = frequency (frequency) actus (Roman actus) = 116.4 foot (length) Ad = angstrom (length) admiralty knot = 6080 ft/hour (velocity) admittance = conductance (conductance) ADSORPTION adsorption = mol/m^2 (category unit) surface concentration = adsorption adsorption = mol/m^2 (adsorption; category unit) agate (typography agate) = 7.14285714285714E-02 in (length) amount of magnetization = magnetic flux (magnetic flux) AMOUNT OF SUBSTANCE amount of substance = mol (category unit) mol (mole) = mol (base unit) mole = mol amount of substance = mol (amount of substance; category unit) amp = A (electric current) ampere = A (electric current) ampere turn = A*turn (magnetic force; derived unit) amphora (Greek amphora) = 10.3 gallon (volume) AMU (atomic mass unit) = 1.66044E-27 kg*approx (mass) angstrom = .0000000001 m (length) ANGULAR ACCELERATION acceleration angular = angular acceleration angular acceleration = rad/s^2 (category unit) rotational acceleration = angular acceleration angular acceleration = rad/s^2 (angular acceleration; category unit) angular impulse = angular momentum (angular momentum) ANGULAR MOMENTUM angular impulse = angular momentum angular momentum = N*m*s (category unit) planck (Planck constant) = 6.626196E-34 J*s angular momentum = N*m*s (angular momentum; category unit) ANGULAR POWER angular power = W*rad (category unit) angular power = W*rad (angular power; category unit) angular speed = angular velocity (angular velocity) ANGULAR VELOCITY angular speed = angular velocity angular velocity = rad/s (category unit) circular frequency = angular velocity rotational frequency = angular velocity rpm (revolutions per minute) = revolution/minute (derived unit) velocity angular = angular velocity angular velocity = rad/s (angular velocity; category unit) annual = yr (time) ap = replacement for "apoth" ap = replacement for "apothecary" ap dr = dram ap (mass) ap dram = dram ap (mass) ap gr = grain ap (mass) ap grain = grain ap (mass) ap lb = pound ap (mass) ap oz = oz ap (mass) ap pound = pound ap (mass) ap scruple = scruple (mass) apostilb = cd/pi*m^2 (luminance; derived unit) apoth = "ap" apothecary = "ap" approx = "" arc deg = degree (plane angle) arc degree = degree (plane angle) arc min = arc minute (plane angle) arc minute (minute of arc) = 1.66666666666667E-02 arc degree (plane angle) arc s (second of arc) = 1.66666666666667E-02 arc minute (plane angle) arc sec = arc s (plane angle) arc second = arc s (plane angle) archin (Russian archin) = 28 in (length) are = 100 m^2 (area) AREA a = are acre = 4840 yard^2 are = 100 m^2 area = m^2 (category unit) barn (abbreviation b) = 1E-28 m^2 cho (Japanese cho) = 2.45 acre circular inch = .25 pi*in^2 circular mil = .00000025 pi*in^2 desyatina (Russian desyatina) = 2.7 acre hectare = 100 are homestead = .25 mile^2 linear displacement = area permeability2 = area rood = 40 rod^2 sabin = ft^2 (derived unit) section (of land) = mile^2 (derived unit) square = 100 ft^2 surface area = area township = 36 mile^2 volume to length = area area = m^2 (area; category unit) area to volume = wave number (wave number) arpentcan = 27.52 mile (length) arpentlin = 191.835 ft (length) arroba (Mexican arroba) = 26.367 pound (mass) arroba oil = oil arroba (volume) arroba wine = wine arroba (volume) as (Roman as) = 12 uncia (mass) assay ton = 29.167 gram (mass) astronomical unit = 149597871000 m*approx (length) At = ampere turn (magnetic force) AT = assay ton (mass) at wt = atomic weight (force) atm = atmosphere (pressure) atmosphere = 101325 Pa (pressure) atomic mass = AMU (mass) atomic mass unit = AMU (mass) atomic weight = AMU*g (force; derived unit) atto = 1E-18 (prefix) au = astronomical unit (length) autumn = 89.6666666666667 day*approx (time) avdp = "" avg = "" avogadro (Avogadro's number) = 6.022169E+23 1/mol*approx (unknown units) avoirdupois = "" b = byte (data) Babylonian shekel = 8.37 gram (mass) bag = 94 pound (mass) bakers dozen = 13 balthazar = 8 magnum (volume) bar = 100000 Pa (pressure) barie = .1 Pa (pressure) barleycorn = .333333333333333 in (length) barn (abbreviation b) = 1E-28 m^2 (area) barrel = 31.5 gallon (volume) barye = .1 Pa (pressure) basis point = .01 percent bath (Israeli bath) = 2.25 in^3 (volume) baud = .1 byte/s (data flow rate) bbl = petroleum barrel (volume) bearing capacity mass basis = surface density (surface density) becquerel = 1/s (activity; derived unit) beer gallon (English beer gallon) = 282 in^3 (volume) bending moment = energy (energy) bending moment to length = force (force) bes (Roman bes) = .48 pound (mass) bev (billion electric volts) = 1000000000 electron volt (energy) bi = 2 (prefix) Biblical cubit = 18 in (length) billion = 1000000000 (prefix) biot = 10 A (electric current) bit = bit (data; base unit) blondel = cd/pi*m^2 (luminance; derived unit) board foot = 144 in^3 (volume) bolt (of cloth) = 40 yard (length) boltzmann (Boltzmann constant) = 1.380622E-23 J/K (heat capacity) bottom measure = .025 in (length) bowling ball = 16 pound (mass) bps (bits per second) = .1 byte/s (data flow rate) Bq = becquerel (activity) British = "UK" BTU (International Table BTU) = 1055.05585262 J*approx (energy) bu = bushel (volume) buck = $ (currency) bundle (of paper) = 2 ream bushel (dry bushel) = 4 peck (volume) byte = 8 bit (data) c (centi) = .01 (prefix) C = coulomb (electric charge) c = speed of light (velocity) cable = cable length (length) cable length = 720 ft (length) cal = calorie (energy) calendar yr (calendar year) = 365 day (time) caliber (gun barrel caliber) = .01 in (length) caloric value mole basis = molar energy (molar energy) calorie (International Table calorie) = 4.1868 J (energy) calorific value mass basis = specific energy (specific energy) calorific value volume basis = pressure (pressure) Canadian gallon = .00454609 m^3 (volume) candela = cd (luminous intensity) candle power (spherical) = 12.556 lumen (luminous flux) CAPACITANCE abF = abfarad abfarad = 1000000000 F capacitance = F (category unit) electric capacitance = capacitance F = farad farad = s/ohm (derived unit) sF = statfarad statfarad = 1.11265E-12 F capacitance = F (capacitance; category unit) capacity = volume (volume) capture unit = wave number (wave number) carat = carat troy (mass) carat t = carat troy (mass) carat troy (troy carat) = .0002 kg (mass) case (of paper) = 4 bundle catty (Chinese catty) = 1.33333333333333 pound (mass) cc (cubic centimeters) = cm^3 (volume; derived unit) cd (candela) = cd (luminous intensity; base unit) celsius = dC (thermodynamic temperature) cen = century (time) cental (British cental) = 100 pound (mass) centennial = century (time) centesimal minute = .01 grade (plane angle) centesimal second = .0001 grade (plane angle) centi = .01 (prefix) centigrade = dC (thermodynamic temperature) centimilli = .00001 (prefix) century = 100 yr (time) Cesium frequency = Sc frequency (frequency) cfs (cubic feet per second) = ft^3/s (volume flow rate; derived unit) ch = chain (length) chain (surveyors chain) = 4 rod (length) char = byte (data) character = byte (data) charge = electric charge (electric charge) charge density = electric charge density (electric charge density) chemical potential = molar energy (molar energy) chetvert (Russian chetvert) = 5.96 bushel (volume) chin = catty (mass) cho (Japanese cho) = 2.45 acre (area) Ci = curie (activity) circle = 2 pi*rad (plane angle) circular frequency = angular velocity (angular velocity) circular inch = .25 pi*in^2 (area) circular mil = .00000025 pi*in^2 (area) city block (informal) = 100 yard*approx (length) cloth finger = 4.5 in (length) cloth quarter = 9 in (length) cm (centimilli) = .00001 (prefix) COMPRESSIBILITY compressibility = 1/Pascal (category unit) specific fuel consumption volume basic = compressibility stretchability = compressibility twistability = compressibility volume basis specific fuel consumption = compressibility compressibility = 1/Pascal (compressibility; category unit) concentration (of amount of substance) = mol/m^3 (concentration; category unit) CONCENTRATION concentration (of amount of substance) = mol/m^3 (category unit) concentration mole to volume = concentration ionic strength = concentration mole to volume concentration = concentration solubility = concentration concentration mass to mass = dimensionless unit concentration mass to volume = mass density (mass density) concentration mole to volume = concentration (concentration) CONCENTRATION RATE concentration rate = mol/m^3*s (category unit) reaction rate = concentration rate concentration rate = mol/m^3*s (concentration rate; category unit) concentration volume to mole = molar volume (molar volume) concentration volume to volume = dimensionless unit CONDUCTANCE abmho = 1000000000 mho admittance = conductance conductance = S (category unit) mho = siemens modulus of admittance = conductance S = siemens siemens = A/V (derived unit) susceptance = conductance conductance = S (conductance; category unit) CONDUCTIVITY conductivity = S/m (category unit) specific conductance = conductivity volume conductivity = conductivity conductivity = S/m (conductivity; category unit) conversion change rate = mole flow rate (mole flow rate) cooling duty = dimensionless unit coomb = 4 bushel (volume) cord (of wood) = 128 ft^3 (volume) cord foot (of wood) = 16 ft^3 (volume) corrosion rate = velocity (velocity) cotton bale (US) = 500 pound (mass) cotton bale Egypt = 750 pound (mass) coul = coulomb (electric charge) coulomb = A*s (electric charge; derived unit) cps (characters per second) = byte/s (data flow rate; derived unit) crith = .0906 gram (mass) ct = carat troy (mass) cu = cup (volume) cubed = "^3" cubit = Biblical cubit (length) cup = .5 pint (volume) curie = 37000000000 Bq (activity) CURRENCY $ (US dollar) = $ (base unit) buck = $ currency = $ (category unit) dollar = $ tick = .03125 $ US dollar = $ currency = $ (currency; category unit) current = electric current (electric current) CURRENT DENSITY current density = A/m^2 (category unit) electric current density = current density current density = A/m^2 (current density; category unit) curvature of a curve = wave number (wave number) cwt = short hundredweight (mass) d (deci) = .1 (prefix) D (deka) = 10 (prefix) d = day (time) da (deka) = 10 (prefix) dalton = AMU (mass) damping viscosity = mass flow rate (mass flow rate) DATA b = byte bit = bit (base unit) byte = 8 bit char = byte character = byte data = byte (category unit) gb = gigabyte gigabyte = 1024 megabyte kb = kilobyte kilobyte = 1024 byte mb = megabyte megabyte = 1024 kilobyte nibble = .5 byte tb = terabyte terabyte = 1024 gigabyte data = byte (data; category unit) DATA FLOW RATE baud = .1 byte/s bps (bits per second) = .1 byte/s cps (characters per second) = byte/s (derived unit) data flow rate = byte/s (category unit) data flow rate = byte/s (data flow rate; category unit) day = 24 hour (time) dC (Celsius degree) = K (thermodynamic temperature) deadweight ton = long ton (mass) dec = 10 (prefix) decade = 10 yr (time) deci = .1 (prefix) decillion = 1E+33 (prefix) decimilli = .0001 (prefix) deg = degree (plane angle) degree (Pi rad / 180) = 1.74532925199433E-02 rad (plane angle) deka = 10 (prefix) demi = .5 (prefix) denarius (Roman denarius) = 60 grain (mass) density = mass density (mass density) DENSITY OF STATES density of states = 1/J*m^3 (category unit) density of states = 1/J*m^3 (density of states; category unit) DENSITY OF VIBRATIONAL MODES density of vibrational modes = s/m^3 (category unit) density of vibrational modes = s/m^3 (density of vibrational modes; category unit) depth = length (length) desyatina (Russian desyatina) = 2.7 acre (area) dF (Fahrenheit degree) = .555555555555556 K (thermodynamic temperature) dialectric permittivity = permittivity (permittivity) dialectric polarization = electric flux density (electric flux density) dialectric strength = permittivity (permittivity) diffusivity = kinematic viscosity (kinematic viscosity) digitus (Roman digitus) = .73 in (length) DIMENSIONLESS UNIT % (percent) = .01 bakers dozen = 13 basis point = .01 percent bundle (of paper) = 2 ream case (of paper) = 4 bundle concentration mass to mass = dimensionless unit concentration volume to volume = dimensionless unit cooling duty = dimensionless unit dimensionless unit = 1 (category unit) dozen = 12 dry = 1.16364718614719 approx googol = 1E+100 great gross = 12 gross gross = 12 dozen karat = 4.16666666666667E-02 length to length = dimensionless unit mass to mass concentration = dimensionless unit percent = .01 pi = 3.14159265358979 proof = .005 quire (of paper) = 25 ream (of paper) = 20 quire score = 20 scotch = 86 proof UK (British) = 1.000002 UK caliber (British caliber) = .001 volume to volume concentration = dimensionless unit dimensionless unit = 1 (category unit) dinar (Arabian dinar) = 4.2 gram (mass) diopter (lens power) = 1/m (wave number; derived unit) displacement = electric flux density (electric flux density) displacement ton = 35 ft^3 (volume) diurnal = day (time) dK = K (thermodynamic temperature) dm (decimilli) = .0001 (prefix) dollar = $ (currency) doppelzentner = 100 kg (mass) DOSE EQUIV rem = .01 Sv sievert = m^2/s^2 (derived unit) Sv = sievert dose equiv = specific energy (specific energy) double = 2 (prefix) dozen = 12 dR (Rankine degree) = .555555555555556 K (thermodynamic temperature) dr = dram (mass) dr ap = dram ap (mass) dr fl = dram fluid (volume) dr fluid = dram fluid (volume) dr t = dram troy (mass) drachma2 (Greek drachma) = 4.2923 gram (mass) draft = pressure (pressure) dram (avoirdupois dram) = .0625 oz (mass) dram ap (apothecary dram) = 3 scruple (mass) dram fl = dram fluid (volume) dram fluid (fluid dram) = .125 oz fluid (volume) dram troy (troy dram) = 60 grain (mass) dRe (Reaumur degree) = 1.25 K (thermodynamic temperature) drop = .03 cm^3 (volume) dry = 1.16364718614719 approx dry barrel = 7056 in^3 (volume) dry gallon = 268.8025 in^3*approx (volume) dry pint = .5 dry quart (volume) dry quart = .25 dry gallon (volume) duodec = 12 (prefix) dw t = pennyweight troy (mass) dyn = dyne (force) DYNAMIC VISCOSITY absolute viscosity = dynamic viscosity dynamic viscosity = Pa*s (category unit) flow rate to length mass basis = dynamic viscosity mass basis flow rate to length = dynamic viscosity P = poise poise = gram/cm*s (derived unit) reyn = lbf*s/in^2 (derived unit) viscosity absolute = dynamic viscosity viscosity dynamic = dynamic viscosity dynamic viscosity = Pa*s (dynamic viscosity; category unit) dyne (cm*gm/s^2) = .00001 N (force) E (exa) = 1E+18 (prefix) e = elementary charge (electric charge) earth mass = 5.983E+24 kg*approx (mass) earth to moon (mean distance earth to moon) = 238860 mile (length) EEC therm (European Economic Community therm) = 105506000 J (energy) eighth = .125 (prefix) ELASTANCE elastance = 1/F (category unit) elastance = 1/F (elastance; category unit) elasticity = surface tension (surface tension) electric capacitance = capacitance (capacitance) ELECTRIC CHARGE abC = abcoulomb abcoulomb = 10 C C = coulomb charge = electric charge coul = coulomb coulomb = A*s (derived unit) e = elementary charge electric charge = C (category unit) electric flux = electric charge electric induction flux = electric charge electronic charge = elementary charge elementary charge = 1.6021917E-19 C flux of displacement = electric charge franklin current = statcoulomb quantity of electricity = electric charge sC = statcoulomb statcoulomb = .000000000333564 C electric charge = C (electric charge; category unit) ELECTRIC CHARGE DENSITY charge density = electric charge density electric charge density = C/m^3 (category unit) volume density of charge = electric charge density electric charge density = C/m^3 (electric charge density; category unit) ELECTRIC CURRENT A (ampere) = A (base unit) abA = abampere abamp = abampere abampere = 10 A amp = A ampere = A biot = 10 A current = electric current electric current = A (category unit) intl ampere ampere (international as of 1948) = .999835 A magnetic potential difference = electric current sA = statampere statampere = .000000000333564 A electric current = A (electric current; category unit) electric current density = current density (current density) ELECTRIC DIPOLE MOMENT electric dipole moment = C*m (category unit) electric dipole moment = C*m (electric dipole moment; category unit) electric displacement = electric flux density (electric flux density) electric field (constant) = 8.8542E-12 F/m (permittivity) ELECTRIC FIELD STRENGTH electric field strength = V/m (category unit) electric intensity = electric field strength electric field strength = V/m (electric field strength; category unit) electric flux = electric charge (electric charge) ELECTRIC FLUX DENSITY dialectric polarization = electric flux density displacement = electric flux density electric displacement = electric flux density electric flux density = C/m^2 (category unit) electric polarization = electric flux density surface density of charge = electric flux density electric flux density = C/m^2 (electric flux density; category unit) electric inductance = inductance (inductance) electric induction flux = electric charge (electric charge) electric intensity = electric field strength (electric field strength) ELECTRIC MOBILITY electric mobility = m^2/V*s (category unit) mobility = electric mobility electric mobility = m^2/V*s (electric mobility; category unit) electric polarization = electric flux density (electric flux density) ELECTRIC POTENTIAL abV = abvolt abvolt = .00000001 V electric potential = V (category unit) electromotive force = electric potential induced emf = electric potential potential = electric potential potential difference = electric potential statvolt = 299.7925 V sV = statvolt V = volt volt = W/A (derived unit) voltage = electric potential voltage potential = electric potential electric potential = V (electric potential; category unit) ELECTRIC RESISTANCE abohm = .000000001 ohm electric resistance = ohm (category unit) impedance = electric resistance modulus of impedance = electric resistance ohm = V/A (derived unit) omega = ohm reactance = electric resistance resistance = electric resistance statohm = 898755400000 ohm electric resistance = ohm (electric resistance; category unit) electrical power = power (power) electrochemical potential = molar energy (molar energy) ELECTROMAGNETIC MOMENT electromagnetic moment = A*m^2 (category unit) magnetic moment = electromagnetic moment electromagnetic moment = A*m^2 (electromagnetic moment; category unit) electromotive force = electric potential (electric potential) electron mass (electron rest mass) = 9.109558E-31 kg (mass) electron volt = 1.6021917E-19 J*approx (energy) electronic charge = elementary charge (electric charge) elementary charge = 1.6021917E-19 C (electric charge) ell = 45 in (length) em (typography em) = point (length) emitted radiant flux = heat flux density (heat flux density) en (typography en) = .5 em (length) ENERGY acoustical energy = energy bending moment = energy bev (billion electric volts) = 1000000000 electron volt BTU (International Table BTU) = 1055.05585262 J*approx cal = calorie calorie (International Table calorie) = 4.1868 J EEC therm (European Economic Community therm) = 105506000 J electron volt = 1.6021917E-19 J*approx energy = J (category unit) erg = .0000001 J eV = electron volt frigorie = 1000 calorie heat = energy impact energy = energy J = joule joule = N*m (derived unit) moment of force = energy quantity of heat = energy radiant energy = energy rydberg = 1.36054 electron volt surface energy = energy therm = 100000 BTU thermie = 1000000 calorie thermochemical calorie = 4.184 J torque = energy UK thermal unit = BTU Wh (watt hour) = W*hour (derived unit) work = energy WWII = 3.5 megaton*TNT energy = J (energy; category unit) energy density = pressure (pressure) engineers chain = 100 ft (length) engineers link = ft (length) English carat = .000205 kg (mass) ennial = yr (time) enthalpy mass basis = specific energy (specific energy) enthalpy mole basis = molar energy (molar energy) entropy = heat capacity (heat capacity) ephah (Israeli ephah) = 10 omer (volume) epsilon0 = electric field (permittivity) equiv = replacement for "equivalent" equiv footcandle (equivalent footcandle) = lm/pi*ft^2 (illuminance; derived unit) equiv lux (equivalent lux) = lx/pi (illuminance; derived unit) equiv phot (equivalent phot) = cd/pi*cm^2 (luminance; derived unit) equivalent = "equiv" erg = .0000001 J (energy) eV = electron volt (energy) exa = 1E+18 (prefix) exact = "" f (femto) = .000000000000001 (prefix) F = farad (capacitance) fahrenheit = dF (thermodynamic temperature) farad = s/ohm (capacitance; derived unit) faraday (Faraday constant) = 96486.7 C/mol (unknown units) fath = fathom (length) fathom = 6 ft (length) fbm = board foot (volume) fc = footcandle (illuminance) Fdy = faraday (unknown units) feet = "foot" femto = .000000000000001 (prefix) fermi = .000000000000001 m (length) fifth = .8 quart (volume) finger = .875 in (length) firkin = 9 gallon (volume) fiscal yr (fiscal year) = 360 day (time) fl = replacement for "liq" fl = replacement for "liquid" fl dr = dram fluid (volume) fl dram = dram fluid (volume) fl head = length (length) fl oz = oz fluid (volume) flam = footlambert (luminance) flow rate area mass basis (flow rate/area mass basis) = kg*s/m^2 (flow rate area mass basis; category unit) FLOW RATE AREA MASS BASIS flow rate area mass basis (flow rate/area mass basis) = kg*s/m^2 (category unit) mass basis flow rate to area = flow rate area mass basis flow rate mass basis = mass flow rate (mass flow rate) flow rate mole basis = mole flow rate (mole flow rate) flow rate to area volume basis = velocity (velocity) flow rate to length mass basis = dynamic viscosity (dynamic viscosity) flow rate to length volume basis = kinematic viscosity (kinematic viscosity) flow rate volume basis = volume flow rate (volume flow rate) fluid dr = dram fluid (volume) fluid dram = dram fluid (volume) fluid oz = oz fluid (volume) FLUIDITY fluidity = m*s/kg (category unit) rhe = 10 m^2/N*s fluidity = m*s/kg (fluidity; category unit) flux linkage = magnetic flux (magnetic flux) flux of displacement = electric charge (electric charge) foot (" foot ") = replacement for "'" foot = 12 in (length) foot = replacement for "feet" football field = 100 yard (length) footcandle = lm/ft^2 (illuminance; derived unit) footlambert = cd/pi*ft^2 (luminance; derived unit) FORCE at wt = atomic weight atomic weight = AMU*g (derived unit) bending moment to length = force dyn = dyne dyne (cm*gm/s^2) = .00001 N force = N (category unit) gf = gram force gram force = gram*g (derived unit) kip (kilopound force) = 1000 pound*g lb force = pound force lbf = pound force N = newton newton = kg*m/s^2 (derived unit) Nt = newton pdl = poundal pound force = pound*g (derived unit) poundal = ft*pound/s^2 (derived unit) sthene = 1000 N ton force = metric ton*g (derived unit) weight = force force = N (force; category unit) fortnight = 2 week (time) fps (feet per second) = ft/s (velocity; derived unit) franklin current = statcoulomb (electric charge) freefall = g (acceleration) freight ton = 40 ft^3 (volume) FREQUENCY activity = frequency Cesium frequency = Sc frequency frequency = 1/s (category unit) hertz = 1/s (derived unit) Hz = hertz pitch = frequency radioactivity = frequency Sc frequency (cesium atom frequency) = 9192631770 1/s frequency = 1/s (frequency; category unit) frigorie = 1000 calorie (energy) ft = foot (length) fuel consumption = length (length) FUEL EFFICIENCY fuel efficiency = 1/m^2 (category unit) length to volume = fuel efficiency mpg (miles per gallon) = mile/gallon (derived unit) fuel efficiency = 1/m^2 (fuel efficiency; category unit) funt (Russian funt) = .9 pound (mass) fur = furlong (length) furlong (surveyors furlong) = 10 chain (length) fy = fiscal yr (time) G (giga) = 1000000000 (prefix) g (gravitational acceleration) = 9.80665 m/s^2 (acceleration) G = gauss (magnetic flux density) gal = gallon (volume) galileo = .01 m/s^2 (acceleration) gallon = 231 in^3 (volume) gamma = .000000001 T (magnetic flux density) gas = universal gas (molar heat capacity) gauss = .0001 T (magnetic flux density) gb = gigabyte (data) geodetic foot = survey foot (length) geographical mile = nautical mile (length) gf = gram force (force) giga = 1000000000 (prefix) gigabyte = 1024 megabyte (data) gilbert = .795775 ampere turn (magnetic force) gill = .5 cup (volume) gm = gram (mass) googol = 1E+100 googol = 1E+100 (prefix) gpm (gallons per minute) = gal/min (volume flow rate; derived unit) gr = grain (mass) gr ap = grain ap (mass) gr t = grain troy (mass) grad = grade (plane angle) grade = .015707963267949 rad (plane angle) gradus (Roman gradus) = 2.43 foot (length) grain (avoirdupois grain) = 1.42857142857143E-04 pound (mass) grain ap (apothecary grain) = grain (mass) grain troy (troy grain) = grain (mass) gram = .001 kg (mass) gram force = gram*g (force; derived unit) gravitation (constant) = .00000000006664 N*m^2/kg^2 (unknown units) gravitational acceleration = g (acceleration) gray = J/kg (absorbed dose; derived unit) great gross = 12 gross Greek cubit = 18.22 in (length) Greek fathom = 4 Greek cubit (length) Greek obolos = 715.38 milligram (mass) Greek palm = .333333333333333 Greek span (length) Greek span = .5 Greek cubit (length) gross = 12 dozen gross cwt = long hundredweight (mass) gross hundredweight = long hundredweight (mass) gross ton = long ton (mass) gunters chain = chain (length) gunters link = link (length) Gy = gray (absorbed dose) h (hecto) = 100 (prefix) H = henry (inductance) h = hour (time) H20 density (water weight density) = .0885472440945 kg/m^2*s^2 (weight density) half = .5 (prefix) hand = 4 in (length) hd = hogshead (volume) heat = energy (energy) HEAT CAPACITY boltzmann (Boltzmann constant) = 1.380622E-23 J/K entropy = heat capacity heat capacity = J/K (category unit) k = boltzmann heat capacity = J/K (heat capacity; category unit) heat conductivity = thermal conductivity (thermal conductivity) heat flow rate = power (power) heat flux = heat flux density (heat flux density) HEAT FLUX DENSITY acoustical intensity = heat flux density emitted radiant flux = heat flux density heat flux = heat flux density heat flux density = W/m^2 (category unit) irradiance = heat flux density power to area = heat flux density radiant exitance = heat flux density radiant flux received = heat flux density sound intensity = heat flux density thermal flux = heat flux density heat flux density = W/m^2 (heat flux density; category unit) HEAT RELEASE RATE heat release rate = W/m^3 (category unit) mixing power = heat release rate heat release rate = W/m^3 (heat release rate; category unit) HEAT TRANSFER COEFFICIENT heat transfer coefficient = W/m^2*K (category unit) heat transfer coefficient = W/m^2*K (heat transfer coefficient; category unit) hectare = 100 are (area) hecto = 100 (prefix) hectokilo = 100000 (prefix) hefner candle = .92 cd (luminous intensity) height = length (length) hekat (Israeli hekat) = 291 in^3 (volume) henry = Wb/A (inductance; derived unit) hertz = 1/s (frequency; derived unit) Hg weight density = 133322.368421 kg/m^2*s^2 (weight density) hhd = hogshead (volume) hk (hectokilo) = 100000 (prefix) HK = hefner candle (luminous intensity) hogshead = 2 barrel (volume) homestead = .25 mile^2 (area) horsepower = 550 ft*pound*g/sec (power) hour = 60 minute (time) hp = horsepower (power) hr = hour (time) hundred = 100 (prefix) hundredweight = short hundredweight (mass) hyl = gf*s^2/m (mass; derived unit) Hz = hertz (frequency) ies ("ies ") = "y " ILLUMINANCE equiv footcandle (equivalent footcandle) = lm/pi*ft^2 (derived unit) equiv lux (equivalent lux) = lx/pi (derived unit) fc = footcandle footcandle = lm/ft^2 (derived unit) illuminance = lx (category unit) illumination = illuminance luminous exitance = illuminance lux = lm/m^2 (derived unit) lx = lux nox = .001 lux illuminance = lx (illuminance; category unit) illumination = illuminance (illuminance) imp ("imp ") = "UK " impact energy = energy (energy) impedance = electric resistance (electric resistance) imperial = "UK" impulse = momentum (momentum) in = inch (length) inch (" inch ") = replacement for """ inch = .0254 m (length) inch = replacement for "inches" inches = "inch" induced emf = electric potential (electric potential) INDUCTANCE abH = abhenry abhenry = .000000001 H electric inductance = inductance H = henry henry = Wb/A (derived unit) inductance = H (category unit) mutual inductance = inductance permeance = inductance self inductance = inductance sH = stathenry stathenry = 898755400000 H inductance = H (inductance; category unit) intensity of force = surface tension (surface tension) interfacial tension = surface tension (surface tension) international = "intl" intl = replacement for "international" intl ampere ampere (international as of 1948) = .999835 A (electric current) intl foot = foot (length) intl mile = mile (length) intl yard = yard (length) IONIC CONDUCTIVITY ionic conductivity = S*m^2/mol (category unit) ionic conductivity = S*m^2/mol (ionic conductivity; category unit) ionic strength = concentration (concentration) ips (inches per second) = in/s (velocity; derived unit) irradiance = heat flux density (heat flux density) Israeli cubit = 21.8 inch (length) Israeli shekel mass = 14.1 gram (mass) J = joule (energy) jeroboam = .8 gallon (volume) jigger = 1.5 oz fluid (volume) joule = N*m (energy; derived unit) K (Kelvin degree) = K (thermodynamic temperature; base unit) k (kilo) = 1000 (prefix) k = boltzmann (heat capacity) karat = 4.16666666666667E-02 kayser = 100 1/m (wave number) kb = kilobyte (data) kelvin = K (thermodynamic temperature) ken (Japanese ken) = 6.95 foot (length) key = kg (mass) kg (kilogram) = kg (mass; base unit) kilderkin = 18 gallon (volume) kilo = 1000 (prefix) kilobyte = 1024 byte (data) kin (Japanese kin) = 1.323 pound (mass) KINEMATIC VISCOSITY diffusivity = kinematic viscosity flow rate to length volume basis = kinematic viscosity kinematic viscosity = m^2/s (category unit) St = stoke stoke = .0001 m^2/s thermal diffusion = kinematic viscosity transmissivity = kinematic viscosity viscosity kinematic = kinematic viscosity volume basis flow rate to length = kinematic viscosity kinematic viscosity = m^2/s (kinematic viscosity; category unit) kip (kilopound force) = 1000 pound*g (force) knot (nautical miles per hour) = nmi/hour (velocity; derived unit) koku (Japanese koku) = 47.6 gallon (volume) kph (kilometers per hour) = km/hour (velocity; derived unit) kwan (Japanese kwan) = 8.27 pound (mass) L = avogadro (unknown units) l = liter (volume) lam = lambert (luminance) lambert = cd/pi*cm^2 (luminance; derived unit) land league = league (length) land mile = mile (length) langley = calorie/cm^2 (surface tension; derived unit) last = 80 bushel (volume) lb = pound (mass) lb ap = pound ap (mass) lb force = pound force (force) lb t = pound troy (mass) lb troy = pound troy (mass) lbf = pound force (force) league = 3 mile (length) leap yr (leap year) = 366 day (time) LENGTH actus (Roman actus) = 116.4 foot Ad = angstrom agate (typography agate) = 7.14285714285714E-02 in angstrom = .0000000001 m archin (Russian archin) = 28 in arpentcan = 27.52 mile arpentlin = 191.835 ft astronomical unit = 149597871000 m*approx au = astronomical unit barleycorn = .333333333333333 in Biblical cubit = 18 in bolt (of cloth) = 40 yard bottom measure = .025 in cable = cable length cable length = 720 ft caliber (gun barrel caliber) = .01 in ch = chain chain (surveyors chain) = 4 rod city block (informal) = 100 yard*approx cloth finger = 4.5 in cloth quarter = 9 in cubit = Biblical cubit depth = length digitus (Roman digitus) = .73 in earth to moon (mean distance earth to moon) = 238860 mile ell = 45 in em (typography em) = point en (typography en) = .5 em engineers chain = 100 ft engineers link = ft fath = fathom fathom = 6 ft fermi = .000000000000001 m finger = .875 in fl head = length foot = 12 in football field = 100 yard ft = foot fuel consumption = length fur = furlong furlong (surveyors furlong) = 10 chain geodetic foot = survey foot geographical mile = nautical mile gradus (Roman gradus) = 2.43 foot Greek cubit = 18.22 in Greek fathom = 4 Greek cubit Greek palm = .333333333333333 Greek span Greek span = .5 Greek cubit gunters chain = chain gunters link = link hand = 4 in height = length in = inch inch = .0254 m intl foot = foot intl mile = mile intl yard = yard Israeli cubit = 21.8 inch ken (Japanese ken) = 6.95 foot land league = league land mile = mile league = 3 mile length = m (category unit) li (Chinese li) = 705 yard light yr (light year) = speed of light*yr (derived unit) line = 8.33333333333333E-02 in link (surveyors link) = 7.92 in lyr = light yr m (meter) = m (base unit) marathon = 46145 yard marine league = nautical league meter = m metre = m mi = mile micron = .000001 m mil = .001 in mile = 5280 foot nail (cloth nail) = .0625 yard naut mi = nautical mile nautical league = 3 nautical mile nautical mile = 1852 m naval shot = 15 fathom nmi = nautical mile nmile = nautical mile pace = 30 in palm = 3 in parasang = 3.5 mile parsec = au*rad/arc sec (derived unit) pc = parsec perch = rod pica (typography pica) = .166666666666667 in point (typography point) = .013837 in pole = rod rd = rod ri (Japanese ri) = 2.44 mile rod (surveyors rod) = 25 link Roman cubit = 17.5 in Roman foot = .971 foot Roman mile = 5000 Roman foot rope = 20 ft sazhen (Russian sazhen) = 6.9 foot shaku (Japanese shaku) = 11.93 in skein = 120 yd soccer field = 100 yard span (cloth span) = 9 in spindle = 14400 yard stadia (Greek stadia) = 400 Greek cubit stadium (Roman stadium) = 202 yard statute league = league statute mile = mile sun (Japanese sun) = 1.193 in survey foot = .304800609601219 m surveyors chain = chain surveyors furlong = furlong surveyors link = link surveyors rod = rod U = micron UK mile (British mile) = 1609.34721869 m vara (Mexican vara) = 32.99 in verst (Russian verst) = 3500 foot wavelength = length width = length yard = 3 ft yd = yard length = m (length; category unit) length to length = dimensionless unit length to volume = fuel efficiency (fuel efficiency) lens power = wave number (wave number) li (Chinese li) = 705 yard (length) liang = tael (mass) libra (Roman libra) = as (mass) librae = libra (mass) LIGHT EXPOSURE light exposure = lx*s (category unit) light exposure = lx*s (light exposure; category unit) light yr (light year) = speed of light*yr (length; derived unit) line = 8.33333333333333E-02 in (length) linear acceleration = acceleration (acceleration) linear current density = magnetic field strength (magnetic field strength) linear displacement = area (area) linear electric current density = magnetic field strength (magnetic field strength) linear impulse = momentum (momentum) linear momentum = momentum (momentum) linear power = power (power) linear speed = velocity (velocity) linear velocity = velocity (velocity) link (surveyors link) = 7.92 in (length) liq = "fl" liquid = "fl" liter = .001 m^3 (volume) livre (French livre) = 490 gram (mass) lm = lumen (luminous flux) load = 1.9 yd^3 (volume) long hundredweight (avoirdupois long hundredweight) = 112 pound (mass) long quarter = 28 pound (mass) long ton (avoirdupois long ton) = 2240 pound (mass) loschmidt (Loschmidt's constant) = 2.68719E+25 1/m^3 (number concentration) lumen = cd*sr (luminous flux; derived unit) LUMINANCE apostilb = cd/pi*m^2 (derived unit) blondel = cd/pi*m^2 (derived unit) equiv phot (equivalent phot) = cd/pi*cm^2 (derived unit) flam = footlambert footlambert = cd/pi*ft^2 (derived unit) lam = lambert lambert = cd/pi*cm^2 (derived unit) luminance = cd/m^2 (category unit) nit = cd/m^2 (derived unit) ph = phot phot = cd/cm^2 (derived unit) sb = stilb skot = .001 apostilb stilb = cd/cm^2 (derived unit) luminance = cd/m^2 (luminance; category unit) LUMINOUS EFFICACY luminous efficacy = lm/W (category unit) luminous efficacy = lm/W (luminous efficacy; category unit) LUMINOUS ENERGY luminous energy = lm*s (category unit) luminous energy = lm*s (luminous energy; category unit) luminous exitance = illuminance (illuminance) LUMINOUS FLUX candle power (spherical) = 12.556 lumen lm = lumen lumen = cd*sr (derived unit) luminous flux = lm (category unit) luminous flux = lm (luminous flux; category unit) LUMINOUS INTENSITY candela = cd cd (candela) = cd (base unit) hefner candle = .92 cd HK = hefner candle luminous intensity = cd (category unit) luminous intensity = cd (luminous intensity; category unit) lunation = synodic month (time) lusec = .000001 torr*m^3/s (power) lux = lm/m^2 (illuminance; derived unit) lx = lux (illuminance) lyr = light yr (length) M (mega) = 1000000 (prefix) m (meter) = m (length; base unit) m (milli) = .001 (prefix) ma (myria) = 10000 (prefix) Ma = mach (velocity) mach (Mach at sea level & 32 dF) = 331.46 m/s (velocity) MAGNETIC DIPOLE MOMENT magnetic dipole moment = J*m/A (category unit) magnetic dipole moment = J*m/A (magnetic dipole moment; category unit) magnetic field (constant) = .0000004 pi*H/m (permeability) MAGNETIC FIELD STRENGTH linear current density = magnetic field strength linear electric current density = magnetic field strength magnetic field strength = A/m (category unit) magnetic intensity = magnetic field strength magnetization = magnetic field strength Oe = oersted oersted = 79.5774715459477 A/m magnetic field strength = A/m (magnetic field strength; category unit) MAGNETIC FLUX amount of magnetization = magnetic flux flux linkage = magnetic flux magnetic flux = Wb (category unit) magnetic mass = magnetic flux maxwell = .00000001 Wb Mx = maxwell Wb = weber weber = V*s (derived unit) magnetic flux = Wb (magnetic flux; category unit) MAGNETIC FLUX DENSITY G = gauss gamma = .000000001 T gauss = .0001 T magnetic flux density = T (category unit) magnetic induction flux = magnetic flux density magnetic polarization = magnetic flux density T = tesla tesla = kg/A*s^2 (derived unit) magnetic flux density = T (magnetic flux density; category unit) MAGNETIC FORCE ampere turn = A*turn (derived unit) At = ampere turn gilbert = .795775 ampere turn magnetic force = ampere turn (category unit) magnetic potential = magnetic force magnetomotive force = magnetic force magnetic force = ampere turn (magnetic force; category unit) magnetic induction flux = magnetic flux density (magnetic flux density) magnetic intensity = magnetic field strength (magnetic field strength) magnetic mass = magnetic flux (magnetic flux) magnetic moment = electromagnetic moment (electromagnetic moment) magnetic permeability = permeability (permeability) magnetic polarization = magnetic flux density (magnetic flux density) magnetic potential = magnetic force (magnetic force) magnetic potential difference = electric current (electric current) MAGNETIC VECTOR POTENTIAL magnetic vector potential = Wb/m (category unit) magnetic vector potential = Wb/m (magnetic vector potential; category unit) magnetization = magnetic field strength (magnetic field strength) magnetomotive force = magnetic force (magnetic force) magnum = 2 quart (volume) marathon = 46145 yard (length) marine league = nautical league (length) MASS AMU (atomic mass unit) = 1.66044E-27 kg*approx ap dr = dram ap ap dram = dram ap ap gr = grain ap ap grain = grain ap ap lb = pound ap ap oz = oz ap ap pound = pound ap ap scruple = scruple arroba (Mexican arroba) = 26.367 pound as (Roman as) = 12 uncia assay ton = 29.167 gram AT = assay ton atomic mass = AMU atomic mass unit = AMU Babylonian shekel = 8.37 gram bag = 94 pound bes (Roman bes) = .48 pound bowling ball = 16 pound carat = carat troy carat t = carat troy carat troy (troy carat) = .0002 kg catty (Chinese catty) = 1.33333333333333 pound cental (British cental) = 100 pound chin = catty cotton bale (US) = 500 pound cotton bale Egypt = 750 pound crith = .0906 gram ct = carat troy cwt = short hundredweight dalton = AMU deadweight ton = long ton denarius (Roman denarius) = 60 grain dinar (Arabian dinar) = 4.2 gram doppelzentner = 100 kg dr = dram dr ap = dram ap dr t = dram troy drachma2 (Greek drachma) = 4.2923 gram dram (avoirdupois dram) = .0625 oz dram ap (apothecary dram) = 3 scruple dram troy (troy dram) = 60 grain dw t = pennyweight troy earth mass = 5.983E+24 kg*approx electron mass (electron rest mass) = 9.109558E-31 kg English carat = .000205 kg funt (Russian funt) = .9 pound gm = gram gr = grain gr ap = grain ap gr t = grain troy grain (avoirdupois grain) = 1.42857142857143E-04 pound grain ap (apothecary grain) = grain grain troy (troy grain) = grain gram = .001 kg Greek obolos = 715.38 milligram gross cwt = long hundredweight gross hundredweight = long hundredweight gross ton = long ton hundredweight = short hundredweight hyl = gf*s^2/m (derived unit) Israeli shekel mass = 14.1 gram key = kg kg (kilogram) = kg (base unit) kin (Japanese kin) = 1.323 pound kwan (Japanese kwan) = 8.27 pound lb = pound lb ap = pound ap lb t = pound troy lb troy = pound troy liang = tael libra (Roman libra) = as librae = libra livre (French livre) = 490 gram long hundredweight (avoirdupois long hundredweight) = 112 pound long quarter = 28 pound long ton (avoirdupois long ton) = 2240 pound mass = kg (category unit) me = electron mass metric ton = 1000 kg Mexican libra = 1.015 pound mg (milligram) = milligram mina (Greek mina) = .9463 pound mite (English mite) = .05 grain mn = neutron mass mp = proton mass net hundredweight = short hundredweight net ton = short ton neutron mass (neutron rest mass) = 1.67492E-27 kg obol (Greek obol) = 11.2 grain oz (avoirdupois ounce) = .0625 pound oz ap (apothecary ounce) = 8 dram ap oz t = oz troy oz troy (troy ounce) = 480 grain pennyweight = pennyweight troy pennyweight troy (troy pennyweight) = 24 grain pfund (German pfund) = 500 gram picul (Chinese picul) = 100 catty pondus (Roman pondus) = as pood (Russian pood) = 36.11 pound pound (avoirdupois pound) = .45359237 kg pound ap (apothecary pound) = 12 oz ap pound t = pound troy pound troy (troy pound) = 12 oz troy proton mass (proton rest mass) = 1.672614E-27 kg quintal = 100 kg Roman obolus = 8.77 grain Roman talent = 125 libra s ap = scruple scruple (apothecary scruple) = 20 grain scruple ap = scruple scrupulum (Roman scrupulum) = 17.53 grain short hundredweight (avoirdupois short hundredweight) = 100 pound short quarter = 25 pound short ton (avoirdupois short ton) = 2000 pound slug = lbf*s^2/ft (derived unit) Spanish libra = 1.014 pound Spanish quintal = 101.4 pound stone = 14 pound t = metric ton tael (Chinese tael) = .0625 catty talent (Greek talent) = 60 mina tan = picul tn = short ton ton = short ton tonne = metric ton troy carat = carat troy troy dr = dram troy troy dram = dram troy troy gr = grain troy troy grain = grain troy troy lb = pound troy troy oz = oz troy troy pennyweight = pennyweight troy troy pound = pound troy u = AMU UK quintal (British quintal) = 100 pound UK quintal2 (British quintal) = 112 pound uncia (Roman uncia) = 420 grain unciae = uncia wey mass = 252 pound mass = kg (mass; category unit) mass basis bearing capacity = surface density (surface density) mass basis calorific value = specific energy (specific energy) mass basis enthalpy = specific energy (specific energy) mass basis flow rate = mass flow rate (mass flow rate) mass basis flow rate to area = flow rate area mass basis (flow rate area mass basis) mass basis flow rate to length = dynamic viscosity (dynamic viscosity) mass basis specific fuel consumption = specific fuel consumption mass basis (specific fuel consumption mass basis) mass basis specific heat capacity = specific heat capacity (specific heat capacity) mass basis throughput = mass flow rate (mass flow rate) mass concentration = mass density (mass density) MASS DENSITY concentration mass to volume = mass density density = mass density mass concentration = mass density mass density = kg/m^3 (category unit) mass to volume concentration = mass density mass density = kg/m^3 (mass density; category unit) MASS FLOW RATE damping viscosity = mass flow rate flow rate mass basis = mass flow rate mass basis flow rate = mass flow rate mass basis throughput = mass flow rate mass flow rate = kg/s (category unit) throughput mass basis = mass flow rate mass flow rate = kg/s (mass flow rate; category unit) mass to area structural loading = surface density (surface density) MASS TO LENGTH mass to length = kg/m (category unit) mass to length = kg/m (mass to length; category unit) mass to mass concentration = dimensionless unit mass to volume concentration = mass density (mass density) mass transfer coefficient = velocity (velocity) maxwell = .00000001 Wb (magnetic flux) mb = megabyte (data) me = electron mass (mass) mean calendar yr = calendar yr (time) mean solar day = day (time) mean solar yr = yr (time) measurement ton = freight ton (volume) mechanical power = power (power) mega = 1000000 (prefix) megabyte = 1024 kilobyte (data) meter = m (length) methuselah = 4 magnum (volume) metre = m (length) metric ton = 1000 kg (mass) Mexican libra = 1.015 pound (mass) mg (milligram) = milligram (mass) mgd (megagallons per day) = 1000000 gallon/day (volume flow rate) mho = siemens (conductance) mi = mile (length) micro = .000001 (prefix) micron = .000001 m (length) mil = .001 in (length) mile = 5280 foot (length) millenium = 1000 yr (time) millennial = millenium (time) milli = .001 (prefix) million = 1000000 (prefix) min = minute (time) mina (Greek mina) = .9463 pound (mass) miners inch = 1.5 ft^3/minute (volume flow rate) minim = 1.66666666666667E-02 dram fluid (volume) minute = 60 s (time) mite (English mite) = .05 grain (mass) mixing power = heat release rate (heat release rate) mmHg (millimeters of mercury) = mm*Hg weight density (pressure; derived unit) mn = neutron mass (mass) mo = month (time) mobility = electric mobility (electric mobility) modulus of admittance = conductance (conductance) modulus of impedance = electric resistance (electric resistance) mol (mole) = mol (amount of substance; base unit) molality (of a solute) = mol/kg (molality; category unit) MOLALITY molality (of a solute) = mol/kg (category unit) molar = universal gas (molar heat capacity) MOLAR CONDUCTIVITY molar conductivity = S/m^2*mol (category unit) molar conductivity = S/m^2*mol (molar conductivity; category unit) MOLAR ENERGY caloric value mole basis = molar energy chemical potential = molar energy electrochemical potential = molar energy enthalpy mole basis = molar energy molar energy = J/mol (category unit) mole basis caloric value = molar energy mole basis enthalpy = molar energy molar energy = J/mol (molar energy; category unit) molar entropy = molar heat capacity (molar heat capacity) MOLAR HEAT CAPACITY gas = universal gas molar = universal gas molar entropy = molar heat capacity molar heat capacity = J/mol*K (category unit) mole basis specific heat capacity = molar heat capacity specific heat capacity mole basis = molar heat capacity universal gas (constant) = 8.31434 J/mol*K molar heat capacity = J/mol*K (molar heat capacity; category unit) MOLAR MASS molar mass = kg/mol (category unit) molar mass = kg/mol (molar mass; category unit) molar refraction = molar volume (molar volume) MOLAR VOLUME concentration volume to mole = molar volume molar refraction = molar volume molar volume = m^3/mol (category unit) mole basis specific volume = molar volume specific volume mole basis = molar volume standard kilomole volume = 22.414 m^3/kmol Vm = standard kilomole volume volume to mole concentration = molar volume molar volume = m^3/mol (molar volume; category unit) mole = mol (amount of substance) mole basis caloric value = molar energy (molar energy) mole basis enthalpy = molar energy (molar energy) mole basis flow rate = mole flow rate (mole flow rate) mole basis specific heat capacity = molar heat capacity (molar heat capacity) mole basis specific volume = molar volume (molar volume) mole basis throughout = mole flow rate (mole flow rate) MOLE FLOW RATE conversion change rate = mole flow rate flow rate mole basis = mole flow rate mole basis flow rate = mole flow rate mole basis throughout = mole flow rate mole flow rate = mol/s (category unit) throughput mole basis = mole flow rate mole flow rate = mol/s (mole flow rate; category unit) mole to volume concentration = concentration (concentration) moment of force = energy (energy) MOMENT OF INERTIA moment of inertia = kg*m^2 (category unit) moment of inertia of mass = moment of inertia polar moment of inertia of mass = moment of inertia product of inertia of mass = moment of inertia moment of inertia = kg*m^2 (moment of inertia; category unit) MOMENT OF INERTIA OF AREA moment of inertia of area = m^4 (category unit) moment of section = moment of inertia of area polar moment of inertia of area = moment of inertia of area product of inertia of area = moment of inertia of area static moment of volume = moment of inertia of area moment of inertia of area = m^4 (moment of inertia of area; category unit) moment of inertia of mass = moment of inertia (moment of inertia) MOMENT OF INERTIA OF VOLUME moment of inertia of volume = m^5 (category unit) polar moment of inertia of volume = moment of inertia of volume product of inertia of volume = moment of inertia of volume moment of inertia of volume = m^5 (moment of inertia of volume; category unit) moment of section = moment of inertia of area (moment of inertia of area) MOMENTUM impulse = momentum linear impulse = momentum linear momentum = momentum momentum = N*s (category unit) momentum = N*s (momentum; category unit) mono = 1 (prefix) month = 8.33333333333333E-02 yr*approx (time) monthly = month (time) mp = proton mass (mass) mpg (miles per gallon) = mile/gallon (fuel efficiency; derived unit) mph (miles per hour) = mile/hour (velocity; derived unit) mu (micro) = .000001 (prefix) mutual inductance = inductance (inductance) Mx = maxwell (magnetic flux) myria = 10000 (prefix) n (nano) = .000000001 (prefix) N = newton (force) Na = avogadro (unknown units) nail (cloth nail) = .0625 yard (length) nano = .000000001 (prefix) naut mi = nautical mile (length) nautical league = 3 nautical mile (length) nautical mile = 1852 m (length) naval shot = 15 fathom (length) nebuchadnezzar = 10 magnum (volume) net hundredweight = short hundredweight (mass) net ton = short ton (mass) neutron mass (neutron rest mass) = 1.67492E-27 kg (mass) newton = kg*m/s^2 (force; derived unit) nibble = .5 byte (data) nit = cd/m^2 (luminance; derived unit) NL = loschmidt (number concentration) nmi = nautical mile (length) nmile = nautical mile (length) noggin = .125 quart (volume) nonillion = 1E+30 (prefix) novennial = 9 yr (time) nox = .001 lux (illuminance) Nt = newton (force) NUMBER CONCENTRATION loschmidt (Loschmidt's constant) = 2.68719E+25 1/m^3 NL = loschmidt number concentration = 1/m^3 (category unit) number concentration = 1/m^3 (number concentration; category unit) obol (Greek obol) = 11.2 grain (mass) octant = .25 pi*rad (plane angle) octennial = 8 yr (time) octillion = 1E+27 (prefix) Oe = oersted (magnetic field strength) oersted = 79.5774715459477 A/m (magnetic field strength) ohm = V/A (electric resistance; derived unit) oil arroba (Spanish oil arroba) = 3.32 gallon (volume) oil barrel = petroleum barrel (volume) olympiad = 4 yr*approx (time) omega = ohm (electric resistance) omer (Israeli omer) = .45 peck (volume) one = 1 (prefix) ounce = "oz" oz (avoirdupois ounce) = .0625 pound (mass) oz = replacement for "ounce" oz ap (apothecary ounce) = 8 dram ap (mass) oz fl = oz fluid (volume) oz fluid (fluid ounce) = .25 gill (volume) oz t = oz troy (mass) oz troy (troy ounce) = 480 grain (mass) P (peta) = 1E+15 (prefix) p (pico) = .000000000001 (prefix) P = poise (dynamic viscosity) Pa = pascal (pressure) pace = 30 in (length) palm = 3 in (length) parasang = 3.5 mile (length) parsec = au*rad/arc sec (length; derived unit) pascal = N/m^2 (pressure; derived unit) pc = parsec (length) pdl = poundal (force) peck (dry peck) = 2 dry gallon (volume) pennyweight = pennyweight troy (mass) pennyweight troy (troy pennyweight) = 24 grain (mass) per (" per ") = "/" percent = .01 perch = rod (length) perennial = yr (time) perigon = circle (plane angle) PERMEABILITY magnetic field (constant) = .0000004 pi*H/m magnetic permeability = permeability permeability = H/m (category unit) u0 = magnetic field permeability = H/m (permeability; category unit) permeability2 = area (area) permeance = inductance (inductance) PERMITTIVITY dialectric permittivity = permittivity dialectric strength = permittivity electric field (constant) = 8.8542E-12 F/m epsilon0 = electric field permittivity = F/m (category unit) permittivity = F/m (permittivity; category unit) peta = 1E+15 (prefix) petroleum barrel = 42 gallon (volume) pfund (German pfund) = 500 gram (mass) ph = phot (luminance) phot = cd/cm^2 (luminance; derived unit) pi = 3.14159265358979 pica (typography pica) = .166666666666667 in (length) pico = .000000000001 (prefix) picul (Chinese picul) = 100 catty (mass) pieze = 1000 Pa (pressure) pint (fluid pint) = .5 quart (volume) pipe = 2 hogshead (volume) pitch = frequency (frequency) pk = peck (volume) planck (Planck constant) = 6.626196E-34 J*s (angular momentum) PLANE ANGLE arc deg = degree arc degree = degree arc min = arc minute arc minute (minute of arc) = 1.66666666666667E-02 arc degree arc s (second of arc) = 1.66666666666667E-02 arc minute arc sec = arc s arc second = arc s centesimal minute = .01 grade centesimal second = .0001 grade circle = 2 pi*rad deg = degree degree (Pi rad / 180) = 1.74532925199433E-02 rad grad = grade grade = .015707963267949 rad octant = .25 pi*rad perigon = circle plane angle = rad (category unit) quadrant = .5 pi*rad r = rad rad (radian) = rad (base unit) radian = rad rev = revolution revolution = 2 pi*rad sextant = .333333333333333 pi*rad sign = .166666666666667 pi*rad turn = 2 pi*rad plane angle = rad (plane angle; category unit) point (typography point) = .013837 in (length) poise = gram/cm*s (dynamic viscosity; derived unit) polar moment of inertia of area = moment of inertia of area (moment of inertia of area) polar moment of inertia of mass = moment of inertia (moment of inertia) polar moment of inertia of volume = moment of inertia of volume (moment of inertia of volume) pole = rod (length) pondus (Roman pondus) = as (mass) pony = .5 jigger (volume) pood (Russian pood) = 36.11 pound (mass) potential = electric potential (electric potential) potential difference = electric potential (electric potential) pound (avoirdupois pound) = .45359237 kg (mass) pound ap (apothecary pound) = 12 oz ap (mass) pound force = pound*g (force; derived unit) pound t = pound troy (mass) pound troy (troy pound) = 12 oz troy (mass) poundal = ft*pound/s^2 (force; derived unit) POWER acoustical power = power electrical power = power heat flow rate = power horsepower = 550 ft*pound*g/sec hp = horsepower linear power = power lusec = .000001 torr*m^3/s mechanical power = power power = W (category unit) radiant flux = power radiant power = power W = watt watt = J/s (derived unit) power = W (power; category unit) power to area = heat flux density (heat flux density) PREFIXES a (atto) = 1E-18 atto = 1E-18 bi = 2 billion = 1000000000 c (centi) = .01 centi = .01 centimilli = .00001 cm (centimilli) = .00001 d (deci) = .1 D (deka) = 10 da (deka) = 10 dec = 10 deci = .1 decillion = 1E+33 decimilli = .0001 deka = 10 demi = .5 dm (decimilli) = .0001 double = 2 duodec = 12 E (exa) = 1E+18 eighth = .125 exa = 1E+18 f (femto) = .000000000000001 femto = .000000000000001 G (giga) = 1000000000 giga = 1000000000 googol = 1E+100 h (hecto) = 100 half = .5 hecto = 100 hectokilo = 100000 hk (hectokilo) = 100000 hundred = 100 k (kilo) = 1000 kilo = 1000 M (mega) = 1000000 m (milli) = .001 ma (myria) = 10000 mega = 1000000 micro = .000001 milli = .001 million = 1000000 mono = 1 mu (micro) = .000001 myria = 10000 n (nano) = .000000001 nano = .000000001 nonillion = 1E+30 octillion = 1E+27 one = 1 P (peta) = 1E+15 p (pico) = .000000000001 peta = 1E+15 pico = .000000000001 quadr = 4 quadri = 4 quadrillion = 1E+15 quadruple = 4 quarter = .25 quin = 5 quintillion = 1E+18 semi = .5 septillion = 1E+24 sesqu = 1.5 sesqui = 1.5 sex = 6 sextillion = 1E+21 T (tera) = 1000000000000 ten = 10 tera = 1000000000000 thousand = 1000 thrice = 3 tri = 3 trillion = 1000000000000 triple = 3 u (micro) = .000001 undec = 11 vic = 20 Y (myria) = 10000 pregnancy = 9 month*approx (time) PRESSURE atm = atmosphere atmosphere = 101325 Pa bar = 100000 Pa barie = .1 Pa barye = .1 Pa calorific value volume basis = pressure draft = pressure energy density = pressure mmHg (millimeters of mercury) = mm*Hg weight density (derived unit) Pa = pascal pascal = N/m^2 (derived unit) pieze = 1000 Pa pressure = N/m^2 (category unit) psi (pounds per square inch) = pound*g/in^2 (derived unit) radiant energy density = pressure sound pressure = pressure standard atmosphere = atmosphere stress = pressure torr = mm*Hg weight density (derived unit) vacuum = pressure volume basis calorific value = pressure pressure = N/m^2 (pressure; category unit) pressure drop to length = weight density (weight density) product of inertia of area = moment of inertia of area (moment of inertia of area) product of inertia of mass = moment of inertia (moment of inertia) product of inertia of volume = moment of inertia of volume (moment of inertia of volume) proof = .005 proton mass (proton rest mass) = 1.672614E-27 kg (mass) psi (pounds per square inch) = pound*g/in^2 (pressure; derived unit) pt = pint (volume) qt = quart (volume) quadr = 4 (prefix) quadrant = .5 pi*rad (plane angle) quadri = 4 (prefix) quadrillion = 1E+15 (prefix) quadruple = 4 (prefix) quantity of electricity = electric charge (electric charge) quantity of heat = energy (energy) quart (fluid quart) = .25 gallon (volume) quarter = .25 (prefix) quin = 5 (prefix) quindecennial = 15 yr (time) quinquennial = 5 yr (time) quintal = 100 kg (mass) quintillion = 1E+18 (prefix) quire (of paper) = 25 r = rad (plane angle) R = roentgen (radiation exposure) rad (radian) = rad (plane angle; base unit) Rad = .01 Gy (absorbed dose) radian = rad (plane angle) RADIANCE radiance = W/m^2*sr (category unit) radiance = W/m^2*sr (radiance; category unit) radiant energy = energy (energy) radiant energy density = pressure (pressure) radiant exitance = heat flux density (heat flux density) radiant flux = power (power) radiant flux received = heat flux density (heat flux density) RADIANT INTENSITY radiant intensity = W/sr (category unit) radiant intensity = W/sr (radiant intensity; category unit) radiant power = power (power) RADIATION EXPOSURE R = roentgen roentgen = .000258 A*s/kg radiation exposure = specific charge (specific charge) radioactivity = frequency (frequency) rankine = dR (thermodynamic temperature) rd = rod (length) reactance = electric resistance (electric resistance) reaction rate = concentration rate (concentration rate) ream (of paper) = 20 quire reaumur = dRe (thermodynamic temperature) refrigeration = 12000 BTU/ton*hour (unknown units) register ton = 100 ft^3 (volume) rehoboam = 3 magnum (volume) RELUCTANCE reluctance = 1/H (category unit) reluctance = 1/H (reluctance; category unit) RELUCTIVITY reluctivity = 1/H*m (category unit) reluctivity = 1/H*m (reluctivity; category unit) rem = .01 Sv (dose equiv) REPLACED VALUES / = replacement for " per " ^2 = replacement for "squared" ^3 = replacement for "cubed" ap = replacement for "apoth" ap = replacement for "apothecary" equiv = replacement for "equivalent" fl = replacement for "liq" fl = replacement for "liquid" foot (" foot ") = replacement for "'" foot = replacement for "feet" inch (" inch ") = replacement for """ inch = replacement for "inches" intl = replacement for "international" oz = replacement for "ounce" UK ("UK ") = replacement for "imp " UK = replacement for "British" UK = replacement for "imperial" y ("y ") = replacement for "ies " yr = replacement for "year" REPLACEMENTS " = " inch " ' = " foot " *approx = "" *avg = "" *exact = "" apoth = "ap" apothecary = "ap" approx = "" avdp = "" avg = "" avoirdupois = "" British = "UK" cubed = "^3" equivalent = "equiv" exact = "" feet = "foot" ies ("ies ") = "y " imp ("imp ") = "UK " imperial = "UK" inches = "inch" international = "intl" liq = "fl" liquid = "fl" ounce = "oz" per (" per ") = "/" squared = "^2" year = "yr" resistance = electric resistance (electric resistance) RESISTIVITY resistivity = ohm*m (category unit) volume resistivity = resistivity resistivity = ohm*m (resistivity; category unit) rev = revolution (plane angle) revolution = 2 pi*rad (plane angle) reyn = lbf*s/in^2 (dynamic viscosity; derived unit) rhe = 10 m^2/N*s (fluidity) ri (Japanese ri) = 2.44 mile (length) rod (surveyors rod) = 25 link (length) roentgen = .000258 A*s/kg (radiation exposure) Roman amphora = 6.84 gallon (volume) Roman cubit = 17.5 in (length) Roman foot = .971 foot (length) Roman mile = 5000 Roman foot (length) Roman obolus = 8.77 grain (mass) Roman talent = 125 libra (mass) rood = 40 rod^2 (area) rope = 20 ft (length) rotational acceleration = angular acceleration (angular acceleration) rotational frequency = angular velocity (angular velocity) rpm (revolutions per minute) = revolution/minute (angular velocity; derived unit) rutherford = 1000000 Bq (activity) rydberg = 1.36054 electron volt (energy) s (second) = s (time; base unit) S = siemens (conductance) s ap = scruple (mass) sA = statampere (electric current) sabin = ft^2 (area; derived unit) sack = 3 bushel (volume) salmanazar = 6 magnum (volume) sazhen (Russian sazhen) = 6.9 foot (length) sb = stilb (luminance) sC = statcoulomb (electric charge) Sc frequency (cesium atom frequency) = 9192631770 1/s (frequency) score = 20 scotch = 86 proof scruple (apothecary scruple) = 20 grain (mass) scruple ap = scruple (mass) scrupulum (Roman scrupulum) = 17.53 grain (mass) seam = 8 bushel (volume) sec = s (time) second = s (time) section (of land) = mile^2 (area; derived unit) section modulus = volume (volume) self inductance = inductance (inductance) semi = .5 (prefix) septennial = 7 yr (time) septillion = 1E+24 (prefix) sesqu = 1.5 (prefix) sesqui = 1.5 (prefix) sex = 6 (prefix) sextant = .333333333333333 pi*rad (plane angle) sextillion = 1E+21 (prefix) sF = statfarad (capacitance) sH = stathenry (inductance) shaku (Japanese shaku) = 11.93 in (length) shipping ton = freight ton (volume) short hundredweight (avoirdupois short hundredweight) = 100 pound (mass) short quarter = 25 pound (mass) short ton (avoirdupois short ton) = 2000 pound (mass) shot = oz fluid (volume) sidereal day = 86164.091 s (time) sidereal month = 27.3217 day (time) sidereal yr (sidereal year) = 365.2564 day (time) siemens = A/V (conductance; derived unit) sievert = m^2/s^2 (dose equiv; derived unit) sigma = us (time) sign = .166666666666667 pi*rad (plane angle) skein = 120 yd (length) skot = .001 apostilb (luminance) slug = lbf*s^2/ft (mass; derived unit) soccer field = 100 yard (length) SOL = speed of light (velocity) SOLID ANGLE solid angle = sr (category unit) spat = 4 pi*sr sphere = 4 pi*sr sr (steradian) = sr (base unit) steradian = sr solid angle = sr (solid angle; category unit) solubility = concentration (concentration) sound intensity = heat flux density (heat flux density) sound pressure = pressure (pressure) span (cloth span) = 9 in (length) Spanish libra = 1.014 pound (mass) Spanish quintal = 101.4 pound (mass) spat = 4 pi*sr (solid angle) SPECIFIC CHARGE radiation exposure = specific charge specific charge = C/kg (category unit) specific charge = C/kg (specific charge; category unit) specific conductance = conductivity (conductivity) SPECIFIC ENERGY absorbed dose = specific energy calorific value mass basis = specific energy dose equiv = specific energy enthalpy mass basis = specific energy mass basis calorific value = specific energy mass basis enthalpy = specific energy specific energy = m^2/s^2 (category unit) TNT = 4600000 m^2/s^2 specific energy = m^2/s^2 (specific energy; category unit) specific entropy = specific heat capacity (specific heat capacity) SPECIFIC FUEL CONSUMPTION MASS BASIS mass basis specific fuel consumption = specific fuel consumption mass basis specific fuel consumption mass basis = kg/J (category unit) specific fuel consumption mass basis = kg/J (specific fuel consumption mass basis; category unit) specific fuel consumption volume basic = compressibility (compressibility) SPECIFIC HEAT CAPACITY mass basis specific heat capacity = specific heat capacity specific entropy = specific heat capacity specific heat capacity = J/kg*K (category unit) specific heat capacity mass basis = specific heat capacity specific heat capacity = J/kg*K (specific heat capacity; category unit) specific heat capacity mass basis = specific heat capacity (specific heat capacity) specific heat capacity mole basis = molar heat capacity (molar heat capacity) specific impact energy = surface tension (surface tension) SPECIFIC SURFACE AREA specific surface area = m^2/kg (category unit) specific surface area = m^2/kg (specific surface area; category unit) SPECIFIC VOLUME specific volume = m^3/kg (category unit) yield = specific volume specific volume = m^3/kg (specific volume; category unit) specific volume mole basis = molar volume (molar volume) speed = velocity (velocity) speed of light (in vacuum) = 299792558 m/s*approx (velocity) sphere = 4 pi*sr (solid angle) spindle = 14400 yard (length) spring = 92.9583333333333 day*approx (time) square = 100 ft^2 (area) squared = "^2" sr (steradian) = sr (solid angle; base unit) st = stere (volume) St = stoke (kinematic viscosity) stadia (Greek stadia) = 400 Greek cubit (length) stadium (Roman stadium) = 202 yard (length) standard atmosphere = atmosphere (pressure) standard barrel = dry barrel (volume) standard kilomole volume = 22.414 m^3/kmol (molar volume) statampere = .000000000333564 A (electric current) statcoulomb = .000000000333564 C (electric charge) statfarad = 1.11265E-12 F (capacitance) stathenry = 898755400000 H (inductance) static moment of area = volume (volume) STATIC MOMENT OF MASS static moment of mass = kg*m (category unit) static moment of mass = kg*m (static moment of mass; category unit) static moment of volume = moment of inertia of area (moment of inertia of area) statohm = 898755400000 ohm (electric resistance) statute league = league (length) statute mile = mile (length) statvolt = 299.7925 V (electric potential) stefan-boltzmann (Stefan-Boltzmann constant) = .000000056697 W/m^2*K^4 (unknown units) steradian = sr (solid angle) stere = m^3 (volume; derived unit) sthene = 1000 N (force) stilb = cd/cm^2 (luminance; derived unit) STIMULATED ABSORPTION stimulated absorption = s/kg (category unit) stimulated emission = stimulated absorption stimulated absorption = s/kg (stimulated absorption; category unit) stimulated emission = stimulated absorption (stimulated absorption) stoke = .0001 m^2/s (kinematic viscosity) stone = 14 pound (mass) stress = pressure (pressure) stretchability = compressibility (compressibility) strike = 2 bushel (volume) summer = 93.5416666666667 day*approx (time) sun (Japanese sun) = 1.193 in (length) surface area = area (area) surface concentration = adsorption (adsorption) SURFACE DENSITY bearing capacity mass basis = surface density mass basis bearing capacity = surface density mass to area structural loading = surface density surface density = kg/m^2 (category unit) surface density = kg/m^2 (surface density; category unit) surface density of charge = electric flux density (electric flux density) surface energy = energy (energy) surface pressure = surface tension (surface tension) SURFACE TENSION elasticity = surface tension intensity of force = surface tension interfacial tension = surface tension langley = calorie/cm^2 (derived unit) specific impact energy = surface tension surface pressure = surface tension surface tension = N/m (category unit) tension = surface tension surface tension = N/m (surface tension; category unit) survey foot = .304800609601219 m (length) surveyors chain = chain (length) surveyors furlong = furlong (length) surveyors link = link (length) surveyors rod = rod (length) susceptance = conductance (conductance) Sv = sievert (dose equiv) sV = statvolt (electric potential) synodic month = 29.5306 day (time) T (tera) = 1000000000000 (prefix) t = metric ton (mass) T = tesla (magnetic flux density) tablespoon = .5 oz fluid (volume) tael (Chinese tael) = .0625 catty (mass) talent (Greek talent) = 60 mina (mass) tan = picul (mass) tb = terabyte (data) tbsp = tablespoon (volume) tea cup = 6 oz fluid (volume) teaspoon = .333333333333333 tablespoon (volume) temperature = thermodynamic temperature (thermodynamic temperature) temperature difference = thermodynamic temperature (thermodynamic temperature) ten = 10 (prefix) tension = surface tension (surface tension) tera = 1000000000000 (prefix) terabyte = 1024 gigabyte (data) tesla = kg/A*s^2 (magnetic flux density; derived unit) therm = 100000 BTU (energy) THERMAL CONDUCTANCE thermal conductance = W/K (category unit) thermal conductance = W/K (thermal conductance; category unit) THERMAL CONDUCTIVITY heat conductivity = thermal conductivity thermal conductivity = W/m*K (category unit) thermal conductivity = W/m*K (thermal conductivity; category unit) thermal diffusion = kinematic viscosity (kinematic viscosity) thermal flux = heat flux density (heat flux density) THERMAL RESISTANCE thermal resistance = K*m^2/W (category unit) thermal resistance = K*m^2/W (thermal resistance; category unit) thermie = 1000000 calorie (energy) thermochemical calorie = 4.184 J (energy) THERMODYNAMIC TEMPERATURE absolute temperature = thermodynamic temperature celsius = dC centigrade = dC dC (Celsius degree) = K dF (Fahrenheit degree) = .555555555555556 K dK = K dR (Rankine degree) = .555555555555556 K dRe (Reaumur degree) = 1.25 K fahrenheit = dF K (Kelvin degree) = K (base unit) kelvin = K rankine = dR reaumur = dRe temperature = thermodynamic temperature temperature difference = thermodynamic temperature thermodynamic temperature = K (category unit) thermodynamic temperature = K (thermodynamic temperature; category unit) thousand = 1000 (prefix) thrice = 3 (prefix) throughput mass basis = mass flow rate (mass flow rate) throughput mole basis = mole flow rate (mole flow rate) throughput volume basis = volume flow rate (volume flow rate) tick = .03125 $ (currency) timber foot = ft^3 (volume; derived unit) TIME annual = yr autumn = 89.6666666666667 day*approx calendar yr (calendar year) = 365 day cen = century centennial = century century = 100 yr d = day day = 24 hour decade = 10 yr diurnal = day ennial = yr fiscal yr (fiscal year) = 360 day fortnight = 2 week fy = fiscal yr h = hour hour = 60 minute hr = hour leap yr (leap year) = 366 day lunation = synodic month mean calendar yr = calendar yr mean solar day = day mean solar yr = yr millenium = 1000 yr millennial = millenium min = minute minute = 60 s mo = month month = 8.33333333333333E-02 yr*approx monthly = month novennial = 9 yr octennial = 8 yr olympiad = 4 yr*approx perennial = yr pregnancy = 9 month*approx quindecennial = 15 yr quinquennial = 5 yr s (second) = s (base unit) sec = s second = s septennial = 7 yr sidereal day = 86164.091 s sidereal month = 27.3217 day sidereal yr (sidereal year) = 365.2564 day sigma = us spring = 92.9583333333333 day*approx summer = 93.5416666666667 day*approx synodic month = 29.5306 day time = s (category unit) week = 7 day weekend = 2 day weekly = week winter = 89.0416666666667 day*approx wk = week yr (year) = 365.24219879 day*approx time = s (time; category unit) tn = short ton (mass) TNT = 4600000 m^2/s^2 (specific energy) ton = short ton (mass) ton force = metric ton*g (force; derived unit) tonne = metric ton (mass) torque = energy (energy) torr = mm*Hg weight density (pressure; derived unit) torsion of a curve = wave number (wave number) tou (Chinese tou) = 2.74 gallon (volume) township = 36 mile^2 (area) transmissivity = kinematic viscosity (kinematic viscosity) tri = 3 (prefix) trillion = 1000000000000 (prefix) triple = 3 (prefix) troy carat = carat troy (mass) troy dr = dram troy (mass) troy dram = dram troy (mass) troy gr = grain troy (mass) troy grain = grain troy (mass) troy lb = pound troy (mass) troy oz = oz troy (mass) troy pennyweight = pennyweight troy (mass) troy pound = pound troy (mass) tsp = teaspoon (volume) tun (English tun) = 8 barrel (volume) turn = 2 pi*rad (plane angle) twistability = compressibility (compressibility) u (micro) = .000001 (prefix) u = AMU (mass) U = micron (length) u0 = magnetic field (permeability) UK ("UK ") = replacement for "imp " UK (British) = 1.000002 UK = replacement for "British" UK = replacement for "imperial" UK bushel (British bushel) = 4 UK peck (volume) UK caliber (British caliber) = .001 UK fl oz = UK oz fluid (volume) UK fluid oz = UK oz fluid (volume) UK gallon (British gallon) = 277.41945 in^3*approx (volume) UK mile (British mile) = 1609.34721869 m (length) UK oz = UK oz fluid (volume) UK oz fl = UK oz fluid (volume) UK oz fluid (British fluid ounce) = .05 UK pint (volume) UK peck (British peck) = 554.84 in^3*approx (volume) UK pint (British pint) = .5 UK quart (volume) UK quart (British quart) = .25 UK gallon (volume) UK quintal (British quintal) = 100 pound (mass) UK quintal2 (British quintal) = 112 pound (mass) UK thermal unit = BTU (energy) uncia (Roman uncia) = 420 grain (mass) unciae = uncia (mass) undec = 11 (prefix) universal gas (constant) = 8.31434 J/mol*K (molar heat capacity) UNKNOWN UNITS avogadro (Avogadro's number) = 6.022169E+23 1/mol*approx faraday (Faraday constant) = 96486.7 C/mol Fdy = faraday gravitation (constant) = .00000000006664 N*m^2/kg^2 L = avogadro Na = avogadro refrigeration = 12000 BTU/ton*hour stefan-boltzmann (Stefan-Boltzmann constant) = .000000056697 W/m^2*K^4 US dollar = $ (currency) V = volt (electric potential) vacuum = pressure (pressure) vara (Mexican vara) = 32.99 in (length) vedro (Russian vedro) = 3.25 gallon (volume) VELOCITY admiralty knot = 6080 ft/hour c = speed of light corrosion rate = velocity flow rate to area volume basis = velocity fps (feet per second) = ft/s (derived unit) ips (inches per second) = in/s (derived unit) knot (nautical miles per hour) = nmi/hour (derived unit) kph (kilometers per hour) = km/hour (derived unit) linear speed = velocity linear velocity = velocity Ma = mach mach (Mach at sea level & 32 dF) = 331.46 m/s mass transfer coefficient = velocity mph (miles per hour) = mile/hour (derived unit) SOL = speed of light speed = velocity speed of light (in vacuum) = 299792558 m/s*approx velocity = m/s (category unit) velocity linear = velocity volume basis flow rate to area = velocity velocity = m/s (velocity; category unit) velocity angular = angular velocity (angular velocity) velocity linear = velocity (velocity) verst (Russian verst) = 3500 foot (length) vic = 20 (prefix) viscosity absolute = dynamic viscosity (dynamic viscosity) viscosity dynamic = dynamic viscosity (dynamic viscosity) viscosity kinematic = kinematic viscosity (kinematic viscosity) Vm = standard kilomole volume (molar volume) volt = W/A (electric potential; derived unit) voltage = electric potential (electric potential) voltage potential = electric potential (electric potential) VOLUME amphora (Greek amphora) = 10.3 gallon arroba oil = oil arroba arroba wine = wine arroba balthazar = 8 magnum barrel = 31.5 gallon bath (Israeli bath) = 2.25 in^3 bbl = petroleum barrel beer gallon (English beer gallon) = 282 in^3 board foot = 144 in^3 bu = bushel bushel (dry bushel) = 4 peck Canadian gallon = .00454609 m^3 capacity = volume cc (cubic centimeters) = cm^3 (derived unit) chetvert (Russian chetvert) = 5.96 bushel coomb = 4 bushel cord (of wood) = 128 ft^3 cord foot (of wood) = 16 ft^3 cu = cup cup = .5 pint displacement ton = 35 ft^3 dr fl = dram fluid dr fluid = dram fluid dram fl = dram fluid dram fluid (fluid dram) = .125 oz fluid drop = .03 cm^3 dry barrel = 7056 in^3 dry gallon = 268.8025 in^3*approx dry pint = .5 dry quart dry quart = .25 dry gallon ephah (Israeli ephah) = 10 omer fbm = board foot fifth = .8 quart firkin = 9 gallon fl dr = dram fluid fl dram = dram fluid fl oz = oz fluid fluid dr = dram fluid fluid dram = dram fluid fluid oz = oz fluid freight ton = 40 ft^3 gal = gallon gallon = 231 in^3 gill = .5 cup hd = hogshead hekat (Israeli hekat) = 291 in^3 hhd = hogshead hogshead = 2 barrel jeroboam = .8 gallon jigger = 1.5 oz fluid kilderkin = 18 gallon koku (Japanese koku) = 47.6 gallon l = liter last = 80 bushel liter = .001 m^3 load = 1.9 yd^3 magnum = 2 quart measurement ton = freight ton methuselah = 4 magnum minim = 1.66666666666667E-02 dram fluid nebuchadnezzar = 10 magnum noggin = .125 quart oil arroba (Spanish oil arroba) = 3.32 gallon oil barrel = petroleum barrel omer (Israeli omer) = .45 peck oz fl = oz fluid oz fluid (fluid ounce) = .25 gill peck (dry peck) = 2 dry gallon petroleum barrel = 42 gallon pint (fluid pint) = .5 quart pipe = 2 hogshead pk = peck pony = .5 jigger pt = pint qt = quart quart (fluid quart) = .25 gallon register ton = 100 ft^3 rehoboam = 3 magnum Roman amphora = 6.84 gallon sack = 3 bushel salmanazar = 6 magnum seam = 8 bushel section modulus = volume shipping ton = freight ton shot = oz fluid st = stere standard barrel = dry barrel static moment of area = volume stere = m^3 (derived unit) strike = 2 bushel tablespoon = .5 oz fluid tbsp = tablespoon tea cup = 6 oz fluid teaspoon = .333333333333333 tablespoon timber foot = ft^3 (derived unit) tou (Chinese tou) = 2.74 gallon tsp = teaspoon tun (English tun) = 8 barrel UK bushel (British bushel) = 4 UK peck UK fl oz = UK oz fluid UK fluid oz = UK oz fluid UK gallon (British gallon) = 277.41945 in^3*approx UK oz = UK oz fluid UK oz fl = UK oz fluid UK oz fluid (British fluid ounce) = .05 UK pint UK peck (British peck) = 554.84 in^3*approx UK pint (British pint) = .5 UK quart UK quart (British quart) = .25 UK gallon vedro (Russian vedro) = 3.25 gallon volume = m^3 (category unit) wey = 40 bushel wine arroba (Spanish wine arroba) = 4.3 gallon wine bottle = .800633 quart volume = m^3 (volume; category unit) volume basis calorific value = pressure (pressure) volume basis flow rate = volume flow rate (volume flow rate) volume basis flow rate to area = velocity (velocity) volume basis flow rate to length = kinematic viscosity (kinematic viscosity) volume basis specific fuel consumption = compressibility (compressibility) volume basis throughput = volume flow rate (volume flow rate) volume conductivity = conductivity (conductivity) volume density of charge = electric charge density (electric charge density) VOLUME FLOW RATE cfs (cubic feet per second) = ft^3/s (derived unit) flow rate volume basis = volume flow rate gpm (gallons per minute) = gal/min (derived unit) mgd (megagallons per day) = 1000000 gallon/day miners inch = 1.5 ft^3/minute throughput volume basis = volume flow rate volume basis flow rate = volume flow rate volume basis throughput = volume flow rate volume flow rate = m^3/s (category unit) volume flow rate = m^3/s (volume flow rate; category unit) volume resistivity = resistivity (resistivity) volume to length = area (area) volume to mole concentration = molar volume (molar volume) volume to volume concentration = dimensionless unit VOLUMETRIC HEAT CAPACITY volumetric heat capacity = J/m^3*K (category unit) volumetric heat transfer coefficient = volumetric heat capacity volumetric heat capacity = J/m^3*K (volumetric heat capacity; category unit) volumetric heat transfer coefficient = volumetric heat capacity (volumetric heat capacity) W = watt (power) watt = J/s (power; derived unit) WAVE NUMBER area to volume = wave number capture unit = wave number curvature of a curve = wave number diopter (lens power) = 1/m (derived unit) kayser = 100 1/m lens power = wave number torsion of a curve = wave number wave number = 1/m (category unit) wave number = 1/m (wave number; category unit) wavelength = length (length) Wb = weber (magnetic flux) weber = V*s (magnetic flux; derived unit) week = 7 day (time) weekend = 2 day (time) weekly = week (time) weight = force (force) WEIGHT DENSITY H20 density (water weight density) = .0885472440945 kg/m^2*s^2 Hg weight density = 133322.368421 kg/m^2*s^2 pressure drop to length = weight density weight density = N/m^3 (category unit) weight density = N/m^3 (weight density; category unit) wey = 40 bushel (volume) wey mass = 252 pound (mass) Wh (watt hour) = W*hour (energy; derived unit) width = length (length) wine arroba (Spanish wine arroba) = 4.3 gallon (volume) wine bottle = .800633 quart (volume) winter = 89.0416666666667 day*approx (time) wk = week (time) work = energy (energy) WWII = 3.5 megaton*TNT (energy) y ("y ") = replacement for "ies " Y (myria) = 10000 (prefix) yard = 3 ft (length) yd = yard (length) year = "yr" yield = specific volume (specific volume) yr (year) = 365.24219879 day*approx (time) yr = replacement for "year"

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