Categories & Units

Angle 

Degree, minute_decimal, second_decimal, minutes_of_arc, seconds_of_arc, Radians, gradians, milliradian, microradian, nanoradian, mil_NATO, mil_Stadiametric, revolution

Angular Acceleration 

radian/secSq, radian/minSq, radian/hrSq, degree/secSq, degree/minSq, degree/hrSq, revolutions/secSq, revolutions/minSq, revolutions/hrSq

Angular Momentum 

Kg-m²/s, g-cm²/s, lb-ft²/s, lb-in²/s, N-m-s, dyne-cm-s

Angular Velocity 

Radian/sec, radian/min, radian/hour, degree/sec, degree/min, degree/hour, revolutions/sec, revolutions/min, revolutions/hour

Area 

M2 , km2, hectm2, decam2, decim2, cm2, milli2, micro_m2, nano_m2, hectare, barn, mile2, mile2_us, yard2, foot2, foot2_us_survey, inch2, township, section, acre, acre_us_survey, rood, chain2, mil2, furlong, electron_cross_section, are, bu, cho, go, jo, rai, se, shaku, tsubo, Tan

Currency 

Afghanistan, Albania, Algeria, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Bhutan, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burundi, Cambodia, Canada ,Cape Verde, Central African Republic, Chad, China, Colombia, Comoros, Congo, Congo, Democratic Republic, Costa Rica, Côte d'Ivoire, Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Ethiopia, Falkland Islands, Fiji, Finland, France, French Polynesia, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, International Monetary Fund, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Korea North, Korea South, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia (Former Yug. Rep.), Madagascar, Malawi, Malaysia, Maldives , Mali, Malta, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Myanmar, Namibia, Nauru, Nepal, Netherlands Antilles, Netherlands, New Caledonia, New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Romania, Russia, Rwanda, Saint Helena, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa (Western), San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, South Africa, Somalia, Sudan, Spain, Sri Lanka, Suriname, Swaziland, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Vatican, Venezuela, Vietnam, Wallis and Futuna Islands, Yemen, Zambia

Data Rate 

bits/sec, Bytes/sec, Bytes/min, Bytes/hour, Bytes/day, Bytes/week, kiloBits/sec, kiloBytes/sec, kiloBytes/min, kiloBytes/hour, kiloBytes/day, kiloBytes/week, kilobits/sec SI, kiloBytes/sec SI, megabits/sec, megaBytes/sec, megaBytes/min, megaBytes/hour, megaBytes/day, megaBytes/week, megabits/sec SI, megaBytes/sec SI, gigabits/sec, gigaBytes/sec, gigaBytes/min, gigaBytes/hour, gigaBytes/day, gigaBytes/week, gigabits/sec SI, gigaBytes/sec SI, terabits/sec, teraBytes/sec, teraBytes/min, teraBytes/hour, teraBytes/day, teraBytes/week, terabits/sec SI, teraBytes/sec SI, petabits/min, petaBytes/min, petaBytes/hour, petaBytes/day, petaBytes/week, petabits/sec SI, petaBytes/sec SI, exaBytes/min, exaBytes/hour, exaBytes/day, exaBytes/week, exaBytes/min SI

Data Size 

bit, Byte, kiloBit, kiloByte, kilobit SI, kiloByte SI, megabit, megaByte, megabit SI, megaByte SI, gigabit, gigaByte, gigabit SI, gigaByte SI, terabit, teraByte, terabit SI, teraByte SI, petabit, petaByte, petabit SI, petaByte SI, exabit, exaByte, exabit SI, exaByte SI, zettabit, zettaByte, zettabit SI, zettaByte SI, yottabit, yottaByte, yottabit SI, yottaByte SI

Density 

Gram/ml, gram/cm³, kg/m³, kg/l, oz/ft³, oz/inch³, oz/gal (UK), oz/gal (US), lb/ft³, lb/in³, lb/gal (UK), lb/gal (US), slug/ft³

Energy 

Joule, BTU, MBTU, MMBTU, calorie, Kilocalorie, CHU, ev, erg, ft lbf, in lbf, ft pdl, N-m, boe, Kilojoule, Megajoule, watt-hour, Kilowatt-hour, Megawatt-hour, Gigawatt-hour, HP-hour, Quad, Therm, Thermie, L-atm, cc-atm, cu ft-atm, Ton of TNT, Ton of Coal(TCE), Ton of Oil(TOE)

Flow Rate 

cm³/sec, cm³/min, cm³/hour, inch³/sec, inch³/min, inch³/hour, ft³/sec, ft³/min, ft³/hour, ft³/day, yard³/sec, yard³/min, yard³/hour, m³/sec, m³/min, m³/hour, m³/day, gallon/sec (UK), gallon/min (UK), gallon/hour (UK), gallon/day (UK), gallon/sec (US), gallon/min (US), gallon/hour (US), gallon/day (US), l/sec, l/min, l /hour, l/day, Tmcft/day

Force 

Newton, dyne, kilogram-force, pound, pound-force, poundal

Fuel 

km/l, gallon/100 mile (US), gallon/100 mile (UK), gallon/mile (US), gallon/mile (UK), liter/10km, liter/100km, liter/100mile, liter/km, mile/gallon (UK), mile/gallon (US), nautical mile/gallon (UK), nautical mile/gallon (US), nautical mile/liter, km/gallon (UK), km/gallon (US)

Illuminance 

Candela-Steradian/cm², Candela-Steradian/m², Candela-Steradian/in², Candela-Steradian/ft², lumen/cm², lumen/m², lumen/in², lumen/ft², foot-candle, meter-candle, lux, millilux, kilolux, Phot, nox

Large Number of UK 

Milliard, billion, billiard, trillion, trilliard, quadrillion, quadrilliard, quintillion, quintilliard, sextillion, sextilliard, septillion, septilliard, octillion, octilliard, nonillion, nonilliard, decillion, decilliard, undecillion, undecilliard, duodecillion, duodecilliard, tredecillion, tredecilliard, quattuordecillion, quattuordecilliard, quindecillion, quindecilliard, sexdecillion, sexdecilliard, septendecillion, octodecillion, novemdecillion, vigintillion

Large Number of US 

Billion, trillion, quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion, undecillion, duodecillion, tredecillion, quattuordecillion, quindecillion, sexdecillion, septendecillion, octodecillion, novemdecillion, vigintillion, unvigintillion, duovigintillion, trevigintillion, quattuorvigintillion, quinvigintillion, sexvigintillion, septenvigintillion, octovigintillion, novemvigintillion, trigintillion, untrigintillion, duotrigintillion, quadragintillion, quinquagintillion, sexagintillion, septuagintillion, octogintillion, nonagintillion, centillion

Length 

meter, exameter, petameter, terameter, gigameter, megameter, kilometer, hectometer, dekameter, decimeter, micrometer, nanometer, picometer, femtometer, attometer, megaparsec_mpc, kiloparsec_kpc, parsec_pc, ight_year, astronomical_unit, league, nautical_league_UK, nautical_league_international, league_statute_US, mile_statute_US, mile_US_survey, mile_roman, kiloyard, furlong, furlong_US_survey, chain, chain_US_survey, rope, rod, rod_US_survey, perch, pole, ell, yard, foot, foot_US_survey, link_US_survey, cubit_UK, hand, span_cloth, finger_cloth, nail_cloth, inch, inch_US_survey barleycorn, mil, microinch, angstrom, Fermi, pica, point, twip, aln, famn, caliber , centiinch, ken, russian_archin, roman_actus, cubit, long_reed, reed, long_cubit, hand_breadth, finger_breadth, planck_length, electron_radius, Bohr_radius, Earth_equatorial_raidus, Earth_polor_radius, earth_distancefrom_sun, sun_radius, bu, cho, fathom, hiro, kanejaku, light_minute, light_second, Mil, mo, nautical_mile, ri, rin, sun, thou

Mass 

kilogram, gram, exagram, petagram, teragram, gigagram, megagram, hectogram, dekagram, decigram, centigram, miligram, microgram, nanogram, picogram, femtogram, attogram, dalton, kg_force_sec²/meter, kilopound, lb_force_sec²_per_foot, pound, ounce, poundal, ton_short_US, ton_long_UK, ton_US, ton_UK, ton_metric, kiloton_metric, quintal_metric, hundredweight_US, hundredweight_UK, quarter_US, quaretr_UK , Gamma, lepton, tomic_mass_unit, Electron_mass, Muon_mass, Proton_mass, Neutron_mass, Deuteron_mass, Earths_mass, Sun_mass Carat_metric, Carat_troy, Fun, Grain, Hyakume, Kan, Kin, Monnme, Pennyweight, Stone_UK, Troy_ounce

MI_Mass 

Kg/m², kg/cm², g/cm², lb/in², lb/ft²

Momentum 

Kg-m/s, g-cm/s, lb-ft/s, lb-in/s, N/s, dyne/s

Power 

Watt, milliWatt, Kilowatt, Megawatt, GigaWatt, Terawatt, tm-cm³/min, atm-cm³/sec, atm-ft³/hr, atm-ft³/min, atm-ft³/sec, L-atm/min, L-atm/sec, BTU/hour, BTU/min, BTU/sec, calorie/sec, kilocalorie/sec, Joule/sec, erg/sec, ft-lb/sec, ft-lb/min, HP, HP (metric), N-m/sec, N-m/min, N-m/hr, ton of Refrigeration, Ton of AC, lusec, pferdestarke,

Radiation 

rem (Roentgen), mrem (milli-Roentgen), Sv (Sievert), mSv (milli-Sievert), μSv (micro-Sievert), rad, milliard, Gy (Gray), mGy (milli-Gray)

Radioactivity 

Decay per minute, Becquerel, kilo Becquerel, mega Becquerel, Giga Becquerel, tera Becquerel, peta Becquerel, Curie, milli Curie, micro Curie

SI 

yocto, zepto, atto, femto, pico, nano, micro, milli, centi, deci, base, deca, hecto, kilo, mega, giga, tera, peta, exa, zetta, yotta

Specific Heat Capacity 

Joule/g-K, Joule/kg-K, KiloJoule/g-K, KiloJoule/kg-K, erg/g-K, erg/kg-K, Joule/g-C, Joule/kg-C, KiloJoule/g-C, KiloJoule/kg-C, erg/g-C, erg/kg-C,BTU/lb-F

Speed 

cm/s, cm/min, cm/hr, m/s, m/min, m/hr, km/sec, km/min, km/hr, foot/s, foot/min, foot/hr, inch/s, inch/min, inch/hr, mile/s, mile/min, mile/hr, knot, second/cm, minute/m, second/inch, minute/inch, minute/foot, minute/yard, minute/km, minute/mile, hour/km, hour/mile

Stress 

atmosphere, atmosphere(technical), bar, barye, cm of mercury, cm of Water, foot of mercury, foot of Water, inch of mercury, inch of Water, lb_force/foot², lb/inch², kg_force/m², kg_force/cm², kg_force/mm², kipf/inch², micron of mercury, mm of mercury, mm of water, pascal(Pa), hectopascal(hPa), kilopascal(kPa), megapascal(MPa), gigapascal(GPa), millibar (mbar), pièze, lbf/ft²(psf), lbf/in²(psi), pdl/ft², short ton /ft², torr

Surface Tension 

N/m, mN/m, gram-force/cm, lb-force/foot, J/m², erg/cm²

Temperature 

Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton, Rèaumur, Romer

Thermal Conductivity 

W/m-⁰K, KW/m-⁰K, erg/s-cm-⁰K, calorie/s-cm-⁰C, Kcalorie/s-cm-⁰C, BTU/hour-ft²-⁰F

Time 

Days, Decade, Century, Galactic Year, Hours, Hours & min, Leap Year, Mean Year, Microsecond, Millisecond, Minute, Min & sec, Month (30 days), Millennium, Nanosecond, Planck Time, Platonic Year, second, Sidereal Day, Weeks, Week & Day, Years, Years & Days, Years & Weeks

Torque 

N-m, MN-m, KN-m, mN-m, μN-m, kgf-m, kgf-cm, gram-force-cm, dyne-cm, lbf-foot, lbf-inch

Typography 

twip, meter, centimeter, millimeter, char_x, char_y, pixel_x, pixel_y, inch, pica_computer, pica_printers, postscript_point, point_computer, point_printer, en

Volume 

liter, pint_dry_us, quart_dry_us, peck_us, peck_uk, cor_biblical, homer, ephah, seah, omer, cab, beer_barrels_US, beer_barrels_Uk, bucket_US, bucket_UK, bushel_US, bushel_UK, cubic_centimeter, cubic_feet, cubic_inch, cubic_meter, cubic_milimeter, cubic_yard, cup_US, cup_UK, dash, drop, drop_UK, dry_gallon, fifth, gallon, gallon_UK, gill, gill_UK, go, koku , microliter, mililiter, ounce_UK, ounce, pinch, pinch_UK, pint, pint_UK, quart, quart_UK, sai, shaku, shot, sho, tablespoon, tablespoon_UK, to