Power converter

Power is energy per time, measured in watts. Cars are rated in horsepower or kilowatts, air-conditioners in BTU per hour (12,000 BTU ≈ 3.5 kW).

Precision Formula and table →

Common conversions

horsepower (hp) → kilowatt kilowatt → horsepower (hp)BTU per hour → watt watt → BTU per hour

1 watt equals

kilowatt (kW)	0.001
megawatt (MW)	0.000001
horsepower (hp) (hp)	0.00134102
metric horsepower (PS) (PS)	0.00135962
BTU per hour (BTU/h)	3.41214

Every Power conversion

watt (W)

kilowatt (kW)

horsepower (hp) (hp)

metric horsepower (PS) (PS)

BTU per hour (BTU/h)

About Power units

kilowatt (kW): Used for motors and electric cars.
horsepower (hp) (hp): Mechanical horsepower, used for engines.
BTU per hour (BTU/h): Air-conditioner size, e.g. 12,000 BTU.

Other categories

Length · Area · Volume · Weight · Temperature · Speed · Time · Data storage · Internet speed · Pressure · Energy · Angle · Fuel economy · Flow rate · Illuminance