HP to kW Converter
Convert horsepower to kilowatts and back, using mechanical horsepower with metric horsepower available.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 0.7457 Kilowatts (kW)
- Conversion
- 1 Horsepower (hp) = 0.7457 Kilowatts (kW)
Convert horsepower to kilowatts, the number you need when an engine is rated in hp but the spec sheet or registration wants kW. Metric horsepower is included for European figures.
How this is calculated
Mechanical horsepower is 550 foot-pounds of force per second, which equals about 745.7 watts, so one horsepower is roughly 0.7457 kilowatts. Horsepower is multiplied by 0.7457 to get kilowatts.
How to use
- Enter the horsepower figure.
- Keep hp to kW, or press Swap for kW to hp.
- Read the result in kilowatts.
Examples
- Car engine:
150 hp = 111.854981 kW - One horsepower:
1 hp = 0.745700 kW - Small motor:
5 hp = 3.72850 kW
FAQ
- How many kW is 100 hp?
- About 74.57 kilowatts, since one mechanical horsepower is roughly 0.7457 kilowatts.
- Which horsepower does this use?
- Mechanical (imperial) horsepower of 745.7 watts by default. Choose metric horsepower (PS) if your figure is in PS.