Power units conversion calculator for metric (SI), US customary and imperial measurement systems.

Power unit in SI system is watt (W) which equals to one joule per second. Other common power units are kilowatts (kw), horsepower (hp), ergs per second (erg/s) foot pounds per minute.

Enter a power unit value into the textbox below and select power units to convert between :

Enter a value to convert:

Precision :
- 0 1 2 3
4 5 6 7
8 9 10

From
attowatt
btu/hour[I.T.]
btu/hour[thermochemical]
btu/hour[15 °C]
btu/minute[I.T.]
btu/minute[thermochemical]
btu/minute[15 °C]
btu/second[I.T.]
btu/second[thermochemical]
btu/second[15 °C]
calorie/hour[I.T.]
calorie/hour[thermochemical]
calorie/hour[15 °C]
calorie/minute[I.T.]
calorie/minute[thermochemical]
calorie/minute[15 °C]
calorie/second[I.T.]
calorie/second[thermochemical]
calorie/second[15 °C]
celsius heat unit/hour
celsius heat unit/minute
celsius heat unit/second
centiwatt
cheval vapeur
clusec
deciwatt
dekawatt
dyne centimeter/hour
dyne centimeter/minute
dyne centimeter/second
erg/hour
erg/minute
erg/second
exawatt
femtowatt
foot pound-force/hour
foot pound-force/minute
foot pound-force/second
foot poundal/hour
foot poundal/minute
foot poundal/second
gram-force centimeter/hour
gram-force centimeter/minute
gram-force centimeter/second
gigawatt
hectowatt
horsepower
horsepower [electric]
horsepower [mechanical]
horsepower [metric]
horsepower [water]
inch ounce-force revolution/minute
joule/hour
joule/minute
joule/second
kilocalorie/hour[I.T]
kilocalorie/hour[thermochemical]
kilocalorie/minute[I.T.]
kilocalorie/minute[thermochemical]
kilocalorie/second[I.T.]
kilocalorie/second[thermochemical]
kilogram-force meter/hour
kilogram-force meter/minute
kilogram-force meter/second
kilopond meter/hour
kilopond meter/minute
kilopond meter/second
kilojoule/hour
kilojoule/minute
kilojoule/second
kilowatt
megajoule/hour
megajoule/minute
megajoule/second
megawatt
microwatt
million btu/hour[I.T.]
milliwatt
newton meter/hour
newton meter/minute
newton meter/second
nanowatt
petawatt
pferdestarke
picowatt
poncelet
pound square foot/cubic second
terawatt
ton of refrigeration
var
volt/ampere
watt
yoctowatt
yottawatt
zeptowatt
zettawatt

To
attowatt
btu/hour[I.T.]
btu/hour[thermochemical]
btu/hour[15 °C]
btu/minute[I.T.]
btu/minute[thermochemical]
btu/minute[15 °C]
btu/second[I.T.]
btu/second[thermochemical]
btu/second[15 °C]
calorie/hour[I.T.]
calorie/hour[thermochemical]
calorie/hour[15 °C]
calorie/minute[I.T.]
calorie/minute[thermochemical]
calorie/minute[15 °C]
calorie/second[I.T.]
calorie/second[thermochemical]
calorie/second[15 °C]
celsius heat unit/hour
celsius heat unit/minute
celsius heat unit/second
centiwatt
cheval vapeur
clusec
deciwatt
dekawatt
dyne centimeter/hour
dyne centimeter/minute
dyne centimeter/second
erg/hour
erg/minute
erg/second
exawatt
femtowatt
foot pound-force/hour
foot pound-force/minute
foot pound-force/second
foot poundal/hour
foot poundal/minute
foot poundal/second
gram-force centimeter/hour
gram-force centimeter/minute
gram-force centimeter/second
gigawatt
hectowatt
horsepower
horsepower [electric]
horsepower [mechanical]
horsepower [metric]
horsepower [water]
inch ounce-force revolution/minute
joule/hour
joule/minute
joule/second
kilocalorie/hour[I.T]
kilocalorie/hour[thermochemical]
kilocalorie/minute[I.T.]
kilocalorie/minute[thermochemical]
kilocalorie/second[I.T.]
kilocalorie/second[thermochemical]
kilogram-force meter/hour
kilogram-force meter/minute
kilogram-force meter/second
kilopond meter/hour
kilopond meter/minute
kilopond meter/second
kilojoule/hour
kilojoule/minute
kilojoule/second
kilowatt
megajoule/hour
megajoule/minute
megajoule/second
megawatt
microwatt
million btu/hour[I.T.]
milliwatt
newton meter/hour
newton meter/minute
newton meter/second
nanowatt
petawatt
pferdestarke
picowatt
poncelet
pound square foot/cubic second
terawatt
ton of refrigeration
var
volt/ampere
watt
yoctowatt
yottawatt
zeptowatt
zettawatt

What is Power?

Power is the rate at which work is performed or energy is transferred. In other words, it is a measure of how quickly a work can be done. Power
is often measured in watts, kilowatts and horsepowers.

The units of power are units of energy divided by time. The power calculation formula is:

Power = Work / Time

Another way to look at power is as a unit of speed (m/s) combined with a unit of force (N). If you were pushing on something with a force of 1 N, and it
moved at a speed of 1 m/s, your power output would be 1 watt.