General Data > Energy, power and torque units and equivalents
Energy
| Unit Name |
Symbol |
SI Equivalent |
| a.u. of energy |
E h |
4.35975x10-18 J |
| barrel oil equivalent |
bboe |
6.12x109 J |
| bboe (barrel oil equivalent) |
bboe |
6.12x109 J |
| BeV (billion eV) |
BeV |
1.60218x10-10 J |
| British thermal unit (ISO) |
Btu (ISO) |
1055.06 J |
| British thermal unit (IT) |
Btu (IT) |
1055.06 J |
| British thermal unit (mean) |
Btu (mean) |
1055.87 J |
| British thermal unit (thermochemical) |
Btu (therm.) |
1054.35 J |
| calorie (15°C) |
cal 15 |
4.185 J |
| calorie (4°C) |
cal 4 |
4.2045 J |
| Calorie (diet kilocalorie) |
Cal, kcal |
4180 J |
| calorie (IT) (International Steam Table) |
cal (IT) |
4.18674 J |
| calorie (mean) |
cal mean |
4.19002 J |
| calorie (thermochemical) |
cal (therm.) |
4.184 J |
| Celsius-heat unit |
Chu |
1899.18 J |
| coulomb volt |
C-V |
1 J |
| cubic centimeter-atm |
cm 3-atm |
0.101325 J |
| cubic foot atm |
ft 3-atm |
2869.2 J |
| electronvolt |
eV |
1.60218x10-19 J |
| erg |
erg |
1x10-7 J |
| foot-pound force |
ft-lbf |
1.35582 J |
| foot-poundal |
ft-pdl |
4.21401x10-2 J |
| gigaelectronvolt |
GeV |
1.60218x10-10 J |
| gram calorie |
gram-cal |
4.18674 J |
| hartree |
E h |
4.35975x10-18 J |
| horsepower (550ft-lbf/s)-hour |
Hp-h |
2.68452x106 J |
| inch pound force |
in-lbf |
0.112985 J |
| joule |
J |
1 J |
| kilocalorie (15°C) |
kcal 15 |
4185.5 J |
| kilocalorie (4°C) |
kcal 4 |
4204.5 J |
Power (Heat flow)
| Unit Name |
Symbol |
SI Equivalent |
| abwatt (emu of power) |
aW |
1x10-7 W |
| British thermal unit (IT) per hour |
Btu (IT)/h |
0.293071 W |
| British thermal unit (IT) per minute |
Btu (IT)/min |
17.5843 W |
| British thermal unit (IT) per second |
Btu (IT)/s |
1055.06 W |
| British thermal unit (therm.) per hour |
Btu (therm.)/h |
0.292875 W |
| British thermal unit (therm.) per minute |
Btu (therm.)/min |
17.5725 W |
| British thermal unit (therm.) per second |
Btu (therm.)/s |
1054.35 W |
| calorie (IT) per hour |
cal (IT)/h |
1.16298x10-3 W |
| calorie (IT) per minute |
cal (IT)/min |
6.9779x10-2 W |
| calorie (IT) per second |
cal (IT)/s |
4.18674 W |
| calorie (therm.) per hour |
cal (therm.)/h |
1.62222x10-3 W |
| calorie (therm.) per minute |
cal (therm.)/min |
6.97333x10-2 W |
| calorie (therm.) per second |
cal (therm.)/s |
4.184 W |
| cheval-vapeur (horsepower) |
cv, HP |
735.499 W |
| dyne-centimeter per second |
dyn-cm/s |
1x10-7 W |
| erg per second |
erg/s |
1x10-7 W |
| foot-pound force per hour |
ft-lbf/h |
3.76616x10-4 W |
| foot-pound force per minute |
ft-lbf/min |
2.2597x10-2 W |
| foot-pound force per second |
ft-lbf/s |
1.35582 W |
| foot-poundal per second |
ft-pdl/s |
4.21401x10-2 W |
| horsepower (550 ft-lbf/s) |
HP |
745.7 W |
| horsepower (boiler) |
HP |
9809.5 W |
| horsepower (British) |
BHP, hp |
745.7 W |
| horsepower (cheval-vapeur) |
cv, HP |
735.499 W |
| horsepower (electric) |
HP |
746 W |
| horsepower (metric) |
HP |
735.499 W |
| horsepower (water) |
HP |
746.043 W |
| kilogram force-meter per second< |
kgf-m/s |
9.80665 W |
| kilowatt |
kW |
1000 W |
| prony |
|
98.0665 W |
Moment, Torque
| Unit Name |
Symbol |
SI Equivalent |
| dyne-centimeter |
dyn-cm |
1x10-7 N-m |
| gram force-centimeter |
gf-cm |
9.80665x10-5 N-m |
| kilogram force-meter |
kgf-m |
9.80665 N-m |
| newton-centimeter |
N-cm |
1x10-2 N-m |
| newton-meter |
N-m |
1 N-m |
| ounce force-inch |
ozf-in |
7.06155x10-3 N-m |
| pound force-foot |
lbf-ft |
1.35582 N-m |
| pound force-inch |
lbf-in |
0.112985 N-m |
| poundal-foot |
pdl-ft |
4.21401x10-2 N-m |