Power converter
Convert engine, electrical and heating power between kW, W, mechanical horsepower, metric horsepower (PS) and BTU/h.
kW
hp
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1 watt in other power units
| Unit | Value |
|---|---|
| Kilowatts (kW) | 0.001 kW |
| Horsepower (hp) | 0.001341022 hp |
| Metric horsepower (PS) | 0.001359622 PS |
| BTU/h (BTU/h) | 3.412142 BTU/h |
About power units
The watt is the SI unit of power: one joule per second. Car power is given in kilowatts, in mechanical horsepower (hp, about 745.7 W) in the US and UK, or in metric horsepower (PS or CV, 735.5 W) in much of Europe. Air conditioners and heaters are often rated in BTU per hour.
Where power conversions are used
Power conversions help compare car engines, size an air conditioner or heater, read appliance labels and work with electric motors and generators.
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.