1#From https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b9 2#Fixed perm from (Pa · s · m2) to (Pa · m2 · s) 3ACCELERATION 4To convert from to Multiply by 5acceleration of free fall, standard (gn) meter per second squared (m/s2) 9.806 65 E+00 6foot per second squared (ft/s2) meter per second squared (m/s2) 3.048 E-01 7gal (Gal) meter per second squared (m/s2) 1.0 E-02 8inch per second squared (in/s2) meter per second squared (m/s2) 2.54 E-02 9Return to top 10 11ANGLE 12To convert from to Multiply by 13degree (°) radian (rad) 1.745 329 E-02 14gon (also called grade) (gon) radian (rad) 1.570 796 E-02 15gon (also called grade) (gon) degree (°) 9.0 E-01 16mil radian (rad) 9.817 477 E-04 17mil degree (°) 5.625 E-02 18minute (′ ) radian (rad) 2.908 882 E-04 19revolution (r) radian (rad) 6.283 185 E+00 20second (″ ) radian (rad) 4.848 137 E-06 21Return to top 22 23AREA AND SECOND MOMENT OF AREA 24To convert from to Multiply by 25acre (based on U.S. survey foot) square meter (m2) 4.046 873 E+03 26are (a) square meter (m2) 1.0 E+02 27barn (b) square meter (m2) 1.0 E-28 28circular mil square meter (m2) 5.067 075 E-10 29circular mil square millimeter (mm2) 5.067 075 E-04 30foot to the fourth power (ft4) 16 meter to the fourth power (m4) 8.630 975 E-03 31hectare (ha) square meter (m2) 1.0 E+04 32inch to the fourth power (in4) 16 meter to the fourth power (m4) 4.162 314 E-07 33square foot (ft2) square meter (m2) 9.290 304 E-02 34square inch (in2) square meter (m2) 6.4516 E-04 35square inch (in2) square centimeter (cm2) 6.4516 E+00 36square mile (mi2) square meter (m2) 2.589 988 E+06 37square mile (mi2) square kilometer (km2) 2.589 988 E+00 38square mile (based on U.S. survey foot) (mi2) 7 square meter (m2) 2.589 998 E+06 39square mile (based on U.S. survey foot) (mi2) 7 square kilometer (km2) 2.589 998 E+00 40square yard (yd2) square meter (m2) 8.361 274 E-01 41CAPACITY (see VOLUME) 42DENSITY (that is, MASS DENSITY - see MASS DIVIDED BY VOLUME) 43 44Return to top 45 46ELECTRICITY and MAGNETISM 47To convert from to Multiply by 48abampere ampere (A) 1.0 E+01 49abcoulomb coulomb(C) 1.0 E+01 50abfarad farad (F) 1.0 E+09 51abhenry henry (H) 1.0 E-09 52abmho siemens (S) 1.0 E+09 53abohm ohm (Ω) 1.0 E-09 54abvolt volt 1.0 E-08 55ampere hour (A · h) coulomb(C) 3.6 E+03 56biot (Bi) ampere (A) 1.0 E+01 57EMU of capacitance (abfarad) farad (F) 1.0 E+09 58EMU of current (abampere) ampere (A) 1.0 E+01 59EMU of electric potential (abvolt) volt (V) 1.0 E-08 60EMU of inductance (abhenry) henry (H) 1.0 E-09 61EMU of resistance (abohm) ohm (Ω) 1.0 E-09 62ESU of capacitance (statfarad) farad (F) 1.112 650 E-12 63ESU of current (statampere) ampere (A) 3.335 641 E-10 64ESU of electric potential (statvolt) volt (V) 2.997 925 E+02 65ESU of inductance (stathenry) henry (H) 8.987 552 E+11 66ESU of resistance (statohm) ohm (Ω) 8.987 552 E+11 67faraday (based on carbon 12) coulomb(C) 9.648 531 E+04 68franklin (Fr) coulomb(C) 3.335 641 E-10 69gamma (γ) tesla (T) 1.0 E-09 70gauss (Gs, G) tesla (T) 1.0 E-04 71gilbert (Gi) ampere (A) 7.957 747 E-01 72maxwell (Mx) weber (Wb) 1.0 E-08 73mho siemens (S) 1.0 E+00 74oersted (Oe) ampere per meter (A/m) 7.957 747 E+01 75ohm centimeter (Ω · cm) ohm meter (Ω · m) 1.0 E-02 76ohm circular-mil per foot ohm meter (Ω · m) 1.662 426 E-09 77ohm circular-mil per foot ohm square millimeter per meter (Ω · mm2/m) 1.662 426 E-03 78statampere ampere (A) 3.335 641 E-10 79statcoulomb coulomb (C) 3.335 641 E-10 80statfarad farad (F) 1.112 650 E-12 81stathenry henry (H) 8.987 552 E+11 82statmho siemens (S) 1.112 650 E-12 83statohm ohm(Ω) 8.987 552 E+11 84statvolt volt (V) 2.997 925 E+02 85unit pole weber (Wb) 1.256 637 E-07 86Return to top 87 88ENERGY (includes WORK) 89To convert from to Multiply by 90British thermal unitIT (BtuIT) 9 joule (J) 1.055 056 E+03 91British thermal unitth (Btuth) 9 joule (J) 1.054 350 E+03 92British thermal unit (mean) (Btu) joule (J) 1.055 87 E+03 93British thermal unit (39 °F) (Btu) joule (J) 1.059 67 E+03 94British thermal unit (59 °F) (Btu) joule (J) 1.054 80 E+03 95British thermal unit (60 °F) (Btu) joule (J) 1.054 68 E+03 96calorieIT (calIT) 10 joule (J) 4.1868 E+00 97calorieth (calth) 10 joule (J) 4.184 E+00 98calorie (mean) (cal) joule (J) 4.190 02 E+00 99calorie (15 °C) (cal15) joule (J) 4.185 80 E+00 100calorie (20 °C) (cal20) joule (J) 4.181 90 E+00 101calorieIT, kilogram (nutrition) 11 joule (J) 4.1868 E+03 102calorieth, kilogram (nutrition) 11 joule (J) 4.184 E+03 103calorie (mean), kilogram (nutrition) 11 joule (J) 4.190 02 E+03 104electronvolt (eV) joule (J) 1.602 177 E-19 105erg (erg) joule (J) 1.0 E-07 106foot poundal joule (J) 4.214 011 E-02 107foot pound-force (ft · lbf) joule (J) 1.355 818 E+00 108kilocalorieIT (kcalIT) joule (J) 4.1868 E+03 109kilocalorieth (kcalth) joule (J) 4.184 E+03 110kilocalorie (mean) (kcal) joule (J) 4.190 02 E+03 111kilowatt hour (kW · h) joule (J) 3.6 E+06 112kilowatt hour (kW · h) megajoule (MJ) 3.6 E+00 113quad (1015 BtuIT) 9 joule (J) 1.055 056 E+18 114therm (EC) 24 joule (J) 1.055 06 E+08 115therm (U.S.) 24 joule (J) 1.054 804 E+08 116ton of TNT (energy equivalent) 25 joule (J) 4.184 E+09 117watt hour (W · h) joule (J) 3.6 E+03 118watt second (W · s) joule (J) 1.0 E+00 119Return to top 120 121ENERGY DIVIDED BY AREA TIME 122To convert from to Multiply by 123erg per square centimeter second [erg/(cm2 · s)] watt per square meter (W/m2) 1.0 E-03 124watt per square centimeter (W/cm2) watt per square meter (W/m2) 1.0 E+04 125watt per square inch (W/in2) watt per square meter (W/m2) 1.550 003 E+03 126FLOW (see MASS DIVIDED BY TIME or VOLUME DIVIDED BY TIME) 127Return to top 128 129FORCE 130To convert from to Multiply by 131dyne (dyn) newton (N) 1.0 E-05 132kilogram-force (kgf) newton (N) 9.806 65 E+00 133kilopond (kilogram-force) (kp) newton (N) 9.806 65 E+00 134kip (1 kip = 1000 lbf) newton (N) 4.448 222 E+03 135kip (1 kip = 1000 lbf) kilonewton (kN) 4.448 222 E+00 136ounce (avoirdupois)-force (ozf) newton (N) 2.780 139 E-01 137poundal newton (N) 1.382 550 E-01 138pound-force (lbf) 23 newton (N) 4.448 222 E+00 139pound-force per pound (lbf/lb) (thrust to mass ratio) newton per kilogram (N/kg) 9.806 65 E+00 140ton-force (2000 lbf) newton (N) 8.896 443 E+03 141ton-force (2000 lbf) kilonewton (kN) 8.896 443 E+00 142FORCE DIVIDED BY AREA (see PRESSURE) 143Return to top 144 145FORCE DIVIDED BY LENGTH 146To convert from to Multiply by 147pound-force per foot (lbf/ft) newton per meter (N/m) 1.459 390 E+01 148pound-force per inch (lbf/in) newton per meter (N/m) 1.751 268 E+02 149Return to top 150 151HEAT - Available Energy 152To convert from to Multiply by 153British thermal unitIT per cubic foot (BtuIT/ft3) joule per cubic meter (J/m3) 3.725 895 E+04 154British thermal unitth per cubic foot (Btuth/ft3) joule per cubic meter (J/m3) 3.723 403 E+04 155British thermal unitIT per pound (BtuIT/lb) joule per kilogram (J/kg) 2.326 E+03 156British thermal unitth per pound (Btuth/lb) joule per kilogram (J/kg) 2.324 444 E+03 157calorieIT per gram (calIT/g) joule per kilogram (J/kg) 4.1868 E+03 158calorieth per gram (calth/g) joule per kilogram (J/kg) 4.184 E+03 159 160 161Coefficient of Heat Transfer 162To convert from to Multiply by 163British thermal unitIT per hour square foot degree Fahrenheit [BtuIT/(h · ft2 · °F)] watt per square meter kelvin [W/(m2 · K)] 5.678 263 E+00 164British thermal unitth per hour square foot degree Fahrenheit [Btuth/(h · ft2 · °F)] watt per square meter kelvin [W/(m2 · K)] 5.674 466 E+00 165British thermal unitIT per second square foot degree Fahrenheit [BtuIT/(s · ft2 · °F)] watt per square meter kelvin [W/(m2 · K)] 2.044 175 E+04 166British thermal unitth per second square foot degree Fahrenheit [Btuth/(s · ft2 · °F)] watt per square meter kelvin [W/(m2 · K)] 2.042 808 E+04 167 168 169Density of Heat 170To convert from to Multiply by 171British thermal unitIT per square foot (BtuIT/ft2) joule per square meter (J/m2) 1.135 653 E+04 172British thermal unitth per square foot (Btuth/ft2) joule per square meter (J/m2) 1.134 893 E+04 173calorieth per square centimeter (calth/cm2) joule per square meter (J/m2) 4.184 E+04 174langley (calth/cm2) joule per square meter (J/m2) 4.184 E+04 175 176 177Density of Heat Flow Rate 178To convert from to Multiply by 179British thermal unitIT per square foot hour [BtuIT/(ft2 · h)] watt per square meter (W/m2) 3.154 591 E+00 180British thermal unitth per square foot hour [Btuth/(ft2 · h)] watt per square meter (W/m2) 3.152 481 E+00 181British thermal unitth per square foot minute [Btuth/(ft2 · min)] watt per square meter (W/m2) 1.891 489 E+02 182British thermal unitIT per square foot second [BtuIT/(ft2 · s)] watt per square meter (W/m2) 1.135 653 E+04 183British thermal unitth per square foot second [Btuth/(ft2 · s)] watt per square meter (W/m2) 1.134 893 E+04 184British thermal unitth per square inch second [Btuth/(in 2 · s)] watt per square meter (W/m2) 1.634 246 E+06 185calorieth per square centimeter minute [calth/(cm2 · min)] watt per square meter (W/m2) 6.973 333 E+02 186calorieth per square centimeter second [calth/(cm2 · s)] watt per square meter (W/m2)) 4.184 E+04 187 188 189Fuel Consumption 190To convert from to Multiply by 191gallon (U.S.) per horsepower hour [gal/(hp · h)] cubic meter per joule (m3/J) 1.410 089 E-09 192gallon (U.S.) per horsepower hour [gal/(hp · h)] liter per joule (L/J) 1.410 089 E-06 193mile per gallon (U.S.) (mpg) (mi/gal) meter per cubic meter (m/m3) 4.251 437 E+05 194mile per gallon (U.S.) (mpg) (mi/gal) kilometer per liter (km/L) 4.251 437 E-01 195mile per gallon (U.S.) (mpg) (mi/gal) 21 liter per 100 kilometer (L/100 km) divide 235.215 by number of miles per gallon 196pound per horsepower hour [lb/(hp · h)] kilogram per joule (kg/J) 1.689 659 E-07 197 198 199Heat Capacity and Entropy 200To convert from to Multiply by 201British thermal unitIT per degree Fahrenheit (BtuIT/°F) joule per kelvin (J/K) 1.899 101 E+03 202British thermal unitth per degree Fahrenheit (Btuth/°F) joule per kelvin (J/K) 1.897 830 E+03 203British thermal unitIT per degree Rankine (BtuIT/°R) joule per kelvin (J/K) 1.899 101 E+03 204British thermal unitth per degree Rankine (Btuth/°R) joule per kelvin (J/K) 1.897 830 E+03 205 206 207Heat Flow Rate 208To convert from to Multiply by 209British thermal unitIT per hour (BtuIT/h) watt (W) 2.930 711 E-01 210British thermal unitth per hour (Btuth/h) watt (W) 2.928 751 E-01 211British thermal unitth per minute (Btuth/min) watt (W) 1.757 250 E+01 212British thermal unitIT per second (BtuIT/s) watt (W) 1.055 056 E+03 213British thermal unitth per second (Btuth/s) watt (W) 1.054 350 E+03 214calorieth per minute (calth/min) watt (W) 6.973 333 E-02 215calorieth per second (calth/s) watt (W) 4.184 E+00 216kilocalorieth per minute (kcalth/min) watt (W) 6.973 333 E+01 217kilocalorieth per second (kcalth/s) watt (W) 4.184 E+03 218ton of refrigeration (12 000 BtuIT/h) watt (W) 3.516 853 E+03 219 220 221Specific Heat Capacity and Specific Entropy 222To convert from to Multiply by 223British thermal unitIT per pound degree Fahrenheit [BtuIT/(lb · °F)] joule per kilogram kelvin [J/(kg · K)] 4.1868 E+03 224British thermal unitth per pound degree Fahrenheit [Btuth/(lb · °F)] joule per kilogram kelvin [J/(kg · K)] 4.184 E+03 225British thermal unitIT per pound degree Rankine [BtuIT/(lb · °R)] joule per kilogram kelvin [J/(kg · K)] 4.1868 E+03 226British thermal unitth per pound degree Rankine [Btuth/(lb · °R)] joule per kilogram kelvin [J/(kg · K)] 4.184 E+03 227calorieIT per gram degree Celsius [calIT/(g · °C)] joule per kilogram kelvin [J/(kg · K)] 4.1868 E+03 228calorieth per gram degree Celsius [calth/(g · °C)] joule per kilogram kelvin [J/(kg · K)] 4.184 E+03 229calorieIT per gram kelvin [calIT/(g · K)] joule per kilogram kelvin [J/(kg · K)] 4.1868 E+03 230calorieth per gram kelvin [calth/(g · K)] joule per kilogram kelvin [J/(kg · K)] 4.184 E+03 231 232 233Thermal Conductivity 234To convert from to Multiply by 235Britsh thermal unitIT foot per hour square foot degree Fahrenheit [BtuIT · ft/(h · ft2 · °F)] watt per meter kelvin [W/(m · K)] 1.730 735 E+00 236Britsh thermal unitth foot per hour square foot degree Fahrenheit [Btuth · ft/(h · ft2 · °F)] watt per meter kelvin [W/(m · K)] 1.729 577 E+00 237Britsh thermal unitIT inch per hour square foot degree Fahrenheit [BtuIT · in/(h · ft2 · °F)] watt per meter kelvin [W/(m · K)] 1.442 279 E-01 238Britsh thermal unitth inch per hour square foot degree Fahrenheit [Btuth · in/(h · ft2 · °F)] watt per meter kelvin [W/(m · K)] 1.441 314 E-01 239Britsh thermal unitIT inch per second square foot degree Fahrenheit [BtuIT · in/(s · ft2 · °F)] watt per meter kelvin [W/(m · K)] 5.192 204 E+02 240Britsh thermal unitth inch per second square foot degree Fahrenheit [Btuth · in/(s · ft2 · °F)] watt per meter kelvin [W/(m · K)] 5.188 732 E+02 241calorieth per centimeter second degree Celsius [calth/(cm · s · °C)] watt per meter kelvin [W/(m · K)] 4.184 E+02 242 243 244Thermal Diffusivity 245To convert from to Multiply by 246square foot per hour (ft2/h) square meter per second (m2/s) 2.580 64 E-05 247Thermal Insulance 248To convert from to Multiply by 249clo square meter kelvin per watt (m2 · K/W) 1.55 E-01 250degree Fahrenheit hour square foot per British thermal unitIT(°F · h · ft2/BtuIT) square meter kelvin per watt (m2 · K/W) 1.761 102 E-01 251degree Fahrenheit hour square foot per British thermal unitth(°F · h · ft2/Btuth) square meter kelvin per watt (m2 · K/W) 1.762 280 E-01 252 253 254Thermal Resistance 255To convert from to Multiply by 256degree Fahrenheit hour per British thermal unitIT(°F · h/BtuIT) kelvin per watt (K/W) 1.895 634 E+00 257degree Fahrenheit hour per British thermal unitth(°F · h/Btuth) kelvin per watt (K/W) 1.896 903 E+00 258degree Fahrenheit second per British thermal unitIT(°F · s/BtuIT) kelvin per watt (K/W) 5.265 651 E-04 259degree Fahrenheit second per British thermal unitth(°F · s/Btuth) kelvin per watt (K/W) 5.269 175 E-04 260 261 262Thermal Resistivity 263To convert from to Multiply by 264degree Fahrenheit hour square foot per British thermal unitIT inch [°F · h · ft2/(BtuIT · in)] meter kelvin per watt (m · K/W) 6.933 472 E+00 265degree Fahrenheit hour square foot per British thermal unitth inch [°F · h · ft2/(Btuth · in)] meter kelvin per watt (m · K/W) 6.938 112 E+04 266Return to top 267 268LENGTH 269To convert from to Multiply by 270ångström(Å) meter (m) 1.0 E-10 271ångström(Å) nanometer (nm) 1.0 E-01 272astronomical unit (ua) meter (m) 1.495 979 E+11 273chain (based on U.S. survey foot) (ch) 7 meter (m) 2.011 684 E+01 274fathom (based on U.S. survey foot) 7 meter (m) 1.828 804 E+00 275fermi meter (m) 1.0 E-15 276fermi femtometer (fm) 1.0 E+00 277foot (ft) meter (m) 3.048 E-01 278foot (U.S. survey) (ft) 7 meter (m) 3.048 006 E-01 279inch (in) meter (m) 2.54 E-02 280inch (in) centimeter (cm) 2.54 E+00 281kayser(K) reciprocal meter (m-1) 1 E+02 282light year (l. y.) 18 meter (m) 9.460 73 E+15 283microinch meter (m) 2.54 E-08 284microinch micrometer (μm) 2.54 E-02 285micron (μ) meter (m) 1.0 E-06 286micron (μ) micrometer (μm) 1.0 E+00 287mil (0.001 in) meter (m) 2.54 E-05 288mil (0.001 in) millimeter (mm) 2.54 E-02 289mile (mi) meter (m) 1.609 344 E+03 290mile (mi) kilometer (km) 1.609 344 E+00 291mile (based on U.S. survey foot) (mi) 7 meter (m) 1.609 347 E+03 292mile (based on U.S. survey foot) (mi) 7 kilometer (km) 1.609 347 E+00 293mile, nautical 20 meter (m) 1.852 E+03 294parsec (pc) meter (m) 3.085 678 E+16 295pica (computer) (1/6 in) meter (m) 4.233 333 E-03 296pica (computer) (1/6 in) millimeter (mm) 4.233 333 E+00 297pica (printer's) meter (m) 4.217 518 E-03 298pica (printer's) millimeter (mm) 4.217 518 E+00 299point (computer) (1/72 in) meter (m) 3.527 778 E-04 300point (computer) (1/72 in) millimeter (mm) 3.527 778 E-01 301point (printer's) meter (m) 3.514 598 E-04 302point (printer's) millimeter (mm) 3.514 598 E-01 303rod (based on U.S. survey foot) (rd) 7 meter (m) 5.029 210 E+00 304yard (yd) meter (m) 9.144 E-01 305Return to top 306 307LIGHT 308To convert from to Multiply by 309candela per square inch (cd/in2) candela per square meter (cd/m2) 1.550 003 E+03 310footcandle lux (lx) 1.076 391 E+01 311footlambert candela per square meter (cd/m2) 3.426 259 E+00 312lambert 17 candela per square meter (cd/m2) 3.183 099 E+03 313lumen per square foot (lm/ft2) lux (lx) 1.076 391 E+01 314phot (ph) lux (lx) 1.0 E+04 315stilb (sb) candela per square meter (cd/m2) 1.0 E+04 316Return to top 317 318MASS and MOMENT OF INERTIA 319To convert from to Multiply by 320carat, metric kilogram (kg) 2.0 E-04 321carat, metric gram (g) 2.0 E-01 322grain (gr) kilogram (kg) 6.479 891 E-05 323grain (gr) milligram (mg) 6.479 891 E+01 324hundredweight (long, 112 lb) kilogram (kg) 5.080 235 E+01 325hundredweight (short, 100 lb) kilogram (kg) 4.535 924 E+01 326kilogram-force second squared per meter (kgf · s2/m) kilogram (kg) 9.806 65 E+00 327ounce (avoirdupois) (oz) kilogram (kg) 2.834 952 E-02 328ounce (avoirdupois) (oz) gram (g) 2.834 952 E+01 329ounce (troy or apothecary) (oz) kilogram (kg) 3.110 348 E-02 330ounce (troy or apothecary) (oz) gram (g) 3.110 348 E+01 331pennyweight (dwt) kilogram (kg) 1.555 174 E-03 332pennyweight (dwt) gram (g) 1.555 174 E+00 333pound (avoirdupois) (lb) 22 kilogram (kg) 4.535 924 E-01 334pound (troy or apothecary) (lb) kilogram (kg) 3.732 417 E-01 335pound foot squared (lb · ft2) kilogram meter squared (kg · m2) 4.214 011 E-02 336pound inch squared (lb · in2) kilogram meter squared (kg · m2) 2.926 397 E-04 337slug (slug) kilogram (kg) 1.459 390 E+01 338ton, assay (AT) kilogram (kg) 2.916 667 E-02 339ton, assay (AT) gram (g) 2.916 667 E+01 340ton, long (2240 lb) kilogram (kg) 1.016 047 E+03 341ton, metric (t) kilogram (kg) 1.0 E+03 342tonne (called "metric ton" in U.S.) (t) kilogram (kg) 1.0 E+03 343ton, short (2000 lb) kilogram (kg) 9.071 847 E+02 344 345MASS DENSITY (see MASS DIVIDED BY VOLUME) 346Return to top 347 348MASS DIVIDED BY AREA 349To convert from to Multiply by 350ounce (avoirdupois) per square foot (oz/ft2) kilogram per square meter (kg/m2) 3.051 517 E-01 351ounce (avoirdupois) per square inch (oz/in2) kilogram per square meter (kg/m2) 4.394 185 E+01 352ounce (avoirdupois) per square yard (oz/yd2) kilogram per square meter (kg/m2) 3.390 575 E-02 353pound per square foot (lb/ft2) kilogram per square meter (kg/m2) 4.882 428 E+00 354pound per square inch (not pound force) (lb/in2) kilogram per square meter (kg/m2) 7.030 696 E+02 355 356MASS DIVIDED BY CAPACITY (see MASS DIVIDED BY VOLUME) 357Return to top 358 359MASS DIVIDED BY LENGTH 360To convert from to Multiply by 361denier kilogram per meter (kg/m) 1.111 111 E-07 362denier gram per meter (g/m) 1.111 111 E-04 363pound per foot (lb/ft) kilogram per meter (kg/m) 1.488 164 E+00 364pound per inch (lb/in) kilogram per meter (kg/m) 1.785 797 E+01 365pound per yard(lb/yd) kilogram per meter (kg/m) 4.960 546 E-01 366tex kilogram per meter (kg/m) 1.0 E-06 367Return to top 368 369MASS DIVIDED BY TIME (includes FLOW) 370To convert from to Multiply by 371pound per hour (lb/h) kilogram per second (kg/s) 1.259 979 E-04 372pound per minute (lb/min) kilogram per second (kg/s) 7.559 873 E-03 373pound per second (lb/s) kilogram per second (kg/s) 4.535 924 E-01 374ton, short, per hour kilogram per second (kg/s) 2.519 958 E-01 375Return to top 376 377MASS DIVIDED BY VOLUME (includes MASS DENSITY and MASS CONCENTRATION) 378To convert from to Multiply by 379grain per gallon (U.S.) (gr/gal) kilogram per cubic meter (kg/m3) 1.711 806 E-02 380grain per gallon (U.S.) (gr/gal) milligram per liter (mg/L) 1.711 806 E+01 381gram per cubic centimeter (g/cm3) kilogram per cubic meter (kg/m3) 1.0 E+03 382ounce (avoirdupois) per cubic inch (oz/in3) kilogram per cubic meter (kg/m3) 1.729 994 E+03 383ounce (avoirdupois) per gallon [Canadian and U.K. (Imperial)] (oz/gal) kilogram per cubic meter (kg/m3) 6.236 023 E+00 384ounce (avoirdupois) per gallon [Canadian and U.K. (Imperial)] (oz/gal) gram per liter (g/L) 6.236 023 E+00 385ounce (avoirdupois) per gallon (U.S.) (oz/gal) kilogram per cubic meter (kg/m3) 7.489 152 E+00 386ounce (avoirdupois) per gallon (U.S.) (oz/gal) gram per liter (g/L) 7.489 152 E+00 387pound per cubic foot (lb/ft3) kilogram per cubic meter (kg/m3) 1.601 846 E+01 388pound per cubic inch (lb/in3) kilogram per cubic meter (kg/m3) 2.767 990 E+04 389pound per cubic yard (lb/yd3) kilogram per cubic meter (kg/m3) 5.932 764 E-01 390pound per gallon [Canadian and U.K. (Imperial)] (lb/gal) kilogram per cubic meter (kg/m3) 9.977 637 E+01 391pound per gallon [Canadian and U.K. (Imperial)] (lb/gal) kilogram per liter (kg/L) 9.977 637 E-02 392pound per gallon (U.S.) (lb/gal) kilogram per cubic meter (kg/m3) 1.198 264 E+02 393pound per gallon (U.S.) (lb/gal) kilogram per liter (kg/L) 1.198 264 E-01 394slug per cubic foot (slug/ft3) kilogram per cubic meter (kg/m3) 5.153 788 E+02 395ton, long, per cubic yard kilogram per cubic meter (kg/m3) 1.328 939 E+03 396ton, short, per cubic yard kilogram per cubic meter (kg/m3) 1.186 553 E+03 397Return to top 398 399MOMENT OF FORCE or TORQUE 400To convert from to Multiply by 401dyne centimeter (dyn · cm) newton meter (N · m) 1.0 E-07 402kilogram-force meter (kgf · m) newton meter (N · m) 9.806 65 E+00 403ounce (avoirdupois)-force inch (ozf · in) newton meter (N · m) 7.061 552 E-03 404ounce (avoirdupois)-force inch (ozf · in) millinewton meter (mN · m) 7.061 552 E+00 405pound-force foot (lbf · ft) newton meter (N · m) 1.355 818 E+00 406pound-force inch (lbf · in) newton meter (N · m) 1.129 848 E-01 407Return to top 408 409MOMENT OF FORCE or TORQUE, DIVIDED BY LENGTH 410To convert from to Multiply by 411pound-force foot per inch (lbf · ft/in) newton meter per meter (N · m/m) 5.337 866 E+01 412pound-force inch per inch (lbf · in/in) newton meter per meter (N · m/m) 4.448 222 E+00 413Return to top 414 415PERMEABILITY 416To convert from to Multiply by 417darcy 14 meter squared (m2) 9.869 233 E-13 418perm (0 °C) kilogram per pascal square meter second [kg/(Pa · m2 · s)] 5.721 35 E-11 419perm (23 °C) kilogram per pascal square meter second [kg/(Pa · m2 · s)] 5.745 25 E-11 420perm inch (0 °C) kilogram per pascal meter second [kg/(Pa · m · s)] 1.453 22 E-12 421perm inch (23 °C) kilogram per pascal meter second [kg/(Pa · m · s)] 1.459 29 E-12 422Return to top 423 424POWER 425To convert from to Multiply by 426erg per second (erg/s) watt (W) 1.0 E-07 427foot pound-force per hour (ft · lbf/h) watt (W) 3.766 161 E-04 428foot pound-force per minute (ft · lbf/min) watt (W) 2.259 697 E-02 429foot pound-force per second (ft · lbf/s) watt (W) 1.355 818 E+00 430horsepower (550 ft · lbf/s) watt (W) 7.456 999 E+02 431horsepower (boiler) watt (W) 9.809 50 E+03 432horsepower (electric) watt (W) 7.46 E+02 433horsepower (metric) watt (W) 7.354 988 E+02 434horsepower (U.K.) watt (W) 7.4570 E+02 435horsepower (water) watt (W) 7.460 43 E+02 436Return to top 437 438PRESSURE or STRESS (FORCE DIVIDED BY AREA) 439To convert from to Multiply by 440atmosphere, standard (atm) pascal (Pa) 1.013 25 E+05 441atmosphere, standard (atm) kilopascal (kPa) 1.013 25 E+02 442atmosphere, technical (at) 8 pascal (Pa) 9.806 65 E+04 443atmosphere, technical (at) 8 kilopascal (kPa) 9.806 65 E+01 444bar (bar) pascal (Pa) 1.0 E+05 445bar (bar) kilopascal (kPa) 1.0 E+02 446centimeter of mercury (0 °C) 12 pascal (Pa) 1.333 22 E+03 447centimeter of mercury (0 °C) 12 kilopascal (kPa) 1.333 22 E+00 448centimeter of mercury, conventional (cmHg) 12 pascal (Pa) 1.333 224 E+03 449centimeter of mercury, conventional (cmHg) 12 kilopascal (kPa) 1.333 224 E+00 450centimeter of water (4 °C) 12 pascal (Pa) 9.806 38 E+01 451centimeter of water, conventional (cmH2O) 12 pascal (Pa) 9.806 65 E+01 452dyne per square centimeter (dyn/cm2) pascal (Pa) 1.0 E-01 453foot of mercury, conventional (ftHg) 12 pascal (Pa) 4.063 666 E+04 454foot of mercury, conventional (ftHg) 12 kilopascal (kPa) 4.063 666 E+01 455foot of water (39.2 °F) 12 pascal (Pa) 2.988 98 E+03 456foot of water (39.2 °F) 12 kilopascal (kPa) 2.988 98 E+00 457foot of water, conventional (ftH2O) 12 pascal (Pa) 2.989 067 E+03 458foot of water, conventional (ftH2O) 12 kilopascal (kPa) 2.989 067 E+00 459gram-force per square centimeter (gf/cm2) pascal (Pa) 9.806 65 E+01 460inch of mercury (32 °F) 12 pascal (Pa) 3.386 38 E+03 461inch of mercury (32 °F) 12 kilopascal (kPa) 3.386 38 E+00 462inch of mercury (60 °F) 12 pascal (Pa) 3.376 85 E+03 463inch of mercury (60 °F) 12 kilopascal (kPa) 3.376 85 E+00 464inch of mercury, conventional (inHg) 12 pascal (Pa) 3.386 389 E+03 465inch of mercury, conventional (inHg) 12 kilopascal (kPa) 3.386 389 E+00 466inch of water (39.2 °F) 12 pascal (Pa) 2.490 82 E+02 467inch of water (60 °F) 12 pascal (Pa) 2.4884 E+02 468inch of water, conventional (inH2O) 12 pascal (Pa) 2.490 889 E+02 469kilogram-force per square centimeter (kgf/cm2) pascal (Pa) 9.806 65 E+04 470kilogram-force per square centimeter (kgf/cm2) kilopascal (kPa) 9.806 65 E+01 471kilogram-force per square meter (kgf/m2) pascal (Pa) 9.806 65 E+00 472kilogram-force per square millimeter (kgf/mm2) pascal (Pa) 9.806 65 E+06 473kilogram-force per square millimeter (kgf/mm2) megapascal (MPa) 9.806 65 E+00 474kip per square inch (ksi) (kip/in2) pascal (Pa) 6.894 757 E+06 475kip per square inch (ksi) (kip/in2) kilopascal (kPa) 6.894 757 E+03 476millibar (mbar) pascal (Pa) 1.0 E+02 477millibar (mbar) kilopascal (kPa) 1.0 E-01 478millimeter of mercury, conventional (mmHg) 12 pascal (Pa) 1.333 224 E+02 479millimeter of water, conventional (mmH2O) 12 pascal (Pa) 9.806 65 E+00 480poundal per square foot pascal (Pa) 1.488 164 E+00 481pound-force per square foot (lbf/ft2) pascal (Pa) 4.788 026 E+01 482pound-force per square inch (psi) (lbf/in2) pascal (Pa) 6.894 757 E+03 483pound-force per square inch (psi) (lbf/in2) kilopascal (kPa) 6.894 757 E+00 484psi (pound-force per square inch) (lbf/in2) pascal (Pa) 6.894 757 E+03 485psi (pound-force per square inch) (lbf/in2) kilopascal (kPa) 6.894 757 E+00 486torr (Torr) pascal (Pa) 1.333 224 E+02 487Return to top 488 489RADIOLOGY 490To convert from to Multiply by 491curie (Ci) becquerel (Bq) 3.7 E+10 492rad (absorbed dose) (rad) gray (Gy) 1.0 E-02 493rem (rem) sievert (Sv) 1.0 E-02 494roentgen (R) coulomb per kilogram (C/kg) 2.58 E-04 495 496SPEED (see VELOCITY) 497 498STRESS (see PRESSURE) 499Return to top 500 501TEMPERATURE 502To convert from to Multiply by 503degree Celsius (°C) kelvin (K) T/K = t/°C + 273.15 504degree centigrade 15 degree Celsius (°C) t/°C ≈ t/deg. cent. 505degree Fahrenheit (°F) degree Celsius (°C) t/°C = (t/°F - 32)/1.8 506degree Fahrenheit (°F) kelvin (K) T/K = (t/°F + 459.67)/1.8 507degree Rankine (°R) kelvin (K) T/K = (T/°R)/1.8 508kelvin (K) degree Celsius (°C) t/°C = T/K - 273.15 509Return to top 510 511TEMPERATURE INTERVAL 512To convert from to Multiply by 513degree Celsius (°C) kelvin (K) 1.0 E+00 514degree centigrade 15 degree Celsius (°C) 1.0 E+00 515degree Fahrenheit (°F) degree Celsius (°C) 5.555 556 E-01 516degree Fahrenheit (°F) kelvin (K) 5.555 556 E-01 517degree Rankine (°R) kelvin (K) 5.555 556 E-01 518Return to top 519 520TIME 521To convert from to Multiply by 522day (d) second (s) 8.64 E+04 523day (sidereal) second (s) 8.616 409 E+04 524hour (h) second (s) 3.6 E+03 525hour (sidereal) second (s) 3.590 170 E+03 526minute (min) second (s) 6.0 E+01 527minute (sidereal) second (s) 5.983 617 E+01 528second (sidereal) second (s) 9.972 696 E-01 529shake second (s) 1.0 E-08 530shake nanosecond (ns) 1.0 E+01 531year (365 days) second (s) 3.1536 E+07 532year (sidereal) second (s) 3.155 815 E+07 533year (tropical) second (s) 3.155 693 E+07 534TORQUE (see MOMENT OF FORCE) 535Return to top 536 537VELOCITY (includes SPEED) 538To convert from to Multiply by 539foot per hour (ft/h) meter per second (m/s) 8.466 667 E-05 540foot per minute (ft/min) meter per second (m/s) 5.08 E-03 541foot per second (ft/s) meter per second (m/s) 3.048 E-01 542inch per second (in/s) meter per second (m/s) 2.54 E-02 543kilometer per hour (km/h) meter per second (m/s) 2.777 778 E-01 544knot (nautical mile per hour) meter per second (m/s) 5.144 444 E-01 545mile per hour (mi/h) meter per second (m/s) 4.4704 E-01 546mile per hour (mi/h) kilometer per hour (km/h) 1.609 344 E+00 547mile per minute (mi/min) meter per second (m/s) 2.682 24 E+01 548mile per second (mi/s) meter per second (m/s) 1.609 344 E+03 549revolution per minute (rpm) (r/min) radian per second (rad/s) 1.047 198 E-01 550rpm (revolution per minute) (r/min) radian per second (rad/s) 1.047 198 E-01 551 552Return to top 553 554VISCOSITY, DYNAMIC 555To convert from to Multiply by 556centipoise (cP) pascal second (Pa · s) 1.0 E-03 557poise (P) pascal second (Pa · s) 1.0 E-01 558poundal second per square foot pascal second (Pa · s) 1.488 164 E+00 559pound-force second per square foot (lbf · s/ft2) pascal second (Pa · s) 4.788 026 E+01 560pound-force second per square inch (lbf · s/in2) pascal second (Pa · s) 6.894 757 E+03 561pound per foot hour [lb/(ft · h)] pascal second (Pa · s) 4.133 789 E-04 562pound per foot second [lb/(ft · s)] pascal second (Pa · s) 1.488 164 E+00 563rhe reciprocal pascal second [(Pa · s)-1] 1.0 E+01 564slug per foot second [slug/(ft · s)] pascal second (Pa · s) 4.788 026 E+01 565 566Return to top 567 568VISCOSITY, KINEMATIC 569To convert from to Multiply by 570centistokes (cSt) meter squared per second (m2/s) 1.0 E-06 571square foot per second (ft2/s) meter squared per second (m2/s) 9.290 304 E-02 572stokes (St) meter squared per second (m2/s) 1.0 E-04 573 574Return to top 575 576VOLUME (includes CAPACITY) 577To convert from to Multiply by 578acre-foot (based on U.S. survey foot) 7 cubic meter (m3) 1.233 489 E+03 579barrel [for petroleum, 42 gallons (U.S.)](bbl) cubic meter (m3) 1.589 873 E-01 580barrel [for petroleum, 42 gallons (U.S.)](bbl) liter (L) 1.589 873 E+02 581bushel (U.S.) (bu) cubic meter (m3) 3.523 907 E-02 582bushel (U.S.) (bu) liter (L) 3.523 907 E+01 583cord (128 ft3) cubic meter (m3) 3.624 556 E+00 584cubic foot (ft3) cubic meter (m3) 2.831 685 E-02 585cubic inch (in3) 13 cubic meter (m3) 1.638 706 E-05 586cubic mile (mi3) cubic meter (m3) 4.168 182 E+09 587cubic yard (yd3) cubic meter (m3) 7.645 549 E-01 588cup (U.S.) cubic meter (m3) 2.365 882 E-04 589cup (U.S.) liter (L) 2.365 882 E-01 590cup (U.S.) milliliter (mL) 2.365 882 E+02 591fluid ounce (U.S.) (fl oz) cubic meter (m3) 2.957 353 E-05 592fluid ounce (U.S.) (fl oz) milliliter (mL) 2.957 353 E+01 593gallon [Canadian and U.K. (Imperial)] (gal) cubic meter (m3) 4.546 09 E-03 594gallon [Canadian and U.K. (Imperial)] (gal) liter (L) 4.546 09 E+00 595gallon (U.S.) (gal) cubic meter (m3) 3.785 412 E-03 596gallon (U.S.) (gal) liter (L) 3.785 412 E+00 597gill [Canadian and U.K. (Imperial)] (gi) cubic meter (m3) 1.420 653 E-04 598gill [Canadian and U.K. (Imperial)] (gi) liter (L) 1.420 653 E-01 599gill (U.S.) (gi) cubic meter (m3) 1.182 941 E-04 600gill (U.S.) (gi) liter (L) 1.182 941 E-01 601liter (L) 19 cubic meter (m3) 1.0 E-03 602ounce [Canadian and U.K. fluid (Imperial)] (fl oz) cubic meter (m3) 2.841 306 E-05 603ounce [Canadian and U.K. fluid (Imperial)] (fl oz) milliliter (mL) 2.841 306 E+01 604ounce (U.S. fluid) (fl oz) cubic meter (m3) 2.957 353 E-05 605ounce (U.S. fluid) (fl oz) milliliter (mL) 2.957 353 E+01 606peck (U.S.) (pk) cubic meter (m3) 8.809 768 E-03 607peck (U.S.) (pk) liter (L) 8.809 768 E+00 608pint (U.S. dry) (dry pt) cubic meter (m3) 5.506 105 E-04 609pint (U.S. dry) (dry pt) liter (L) 5.506 105 E-01 610pint (U.S. liquid) (liq pt) cubic meter (m3) 4.731 765 E-04 611pint (U.S. liquid) (liq pt) liter (L) 4.731 765 E-01 612quart (U.S. dry) (dry qt) cubic meter (m3) 1.101 221 E-03 613quart (U.S. dry) (dry qt) liter (L) 1.101 221 E+00 614quart (U.S. liquid) (liq qt) cubic meter (m3) 9.463 529 E-04 615quart (U.S. liquid) (liq qt) liter (L) 9.463 529 E-01 616stere (st) cubic meter (m3) 1.0 E+00 617tablespoon cubic meter (m3) 1.478 676 E-05 618tablespoon milliliter (mL) 1.478 676 E+01 619teaspoon cubic meter (m3) 4.928 922 E-06 620teaspoon milliliter (mL) 4.928 922 E+00 621ton, register cubic meter (m3) 2.831 685 E+00 622Return to top 623 624VOLUME DIVIDED BY TIME (includes FLOW) 625To convert from to Multiply by 626cubic foot per minute (ft3/min) cubic meter per second (m3/s) 4.719 474 E-04 627cubic foot per minute (ft3/min) liter per second (L/s) 4.719 474 E-01 628cubic foot per second (ft3/s) cubic meter per second (m3/s) 2.831 685 E-02 629cubic inch per minute (in3/min) cubic meter per second (m3/s) 2.731 177 E-07 630cubic yard per minute (yd3/min) cubic meter per second (m3/s) 1.274 258 E-02 631gallon (U.S.) per day (gal/d) cubic meter per second (m3/s) 4.381 264 E-08 632gallon (U.S.) per day (gal/d) liter per second (L/s) 4.381 264 E-05 633gallon (U.S.) per minute (gpm) (gal/min) cubic meter per second (m3/s) 6.309 020 E-05 634gallon (U.S.) per minute (gpm) (gal/min) liter per second (L/s) 6.309 020 E-02 635Return to top 636 637WORK (see ENERGY) 638