Power converter
Convert engine, electrical and heating or cooling power between units.
100 Kilowatts ≈ 134.102209 Horsepower (mechanical)
Exact factorRounded for display to about 10 significant digits.
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About these units
Power is the rate of using or producing energy. The SI unit is the watt, one joule per second; engines and appliances are rated in kilowatts.
Horsepower comes in several sizes. Mechanical horsepower (550 foot-pounds per second, about 745.7 W) is used in the US and UK; metric horsepower (PS, CV, ch, about 735.5 W) in much of Europe and Asia; electrical horsepower is exactly 746 W. Air conditioners and heaters are often rated in BTU per hour or tons of refrigeration.
Popular conversions
- Kilowatts to Horsepower (mechanical)
- Horsepower (mechanical) to Kilowatts
- Horsepower (mechanical) to Watts
- Watts to Horsepower (mechanical)
- Metric horsepower (PS) to Kilowatts
- Kilowatts to Metric horsepower (PS)
- Metric horsepower (PS) to Horsepower (mechanical)
- Horsepower (mechanical) to Metric horsepower (PS)
- Kilowatts to Watts
- Watts to Kilowatts
- Megawatts to Kilowatts
- Kilowatts to Megawatts
- BTU per hour to Watts
- Watts to BTU per hour
- BTU per hour to Kilowatts
- Kilowatts to BTU per hour
- Tons of refrigeration to Kilowatts
- Kilowatts to Tons of refrigeration
- Tons of refrigeration to BTU per hour
- Kilocalories per hour to Watts
- Gigawatts to Megawatts
- Megawatts to Gigawatts
- Electrical horsepower to Watts
- Milliwatts to Watts
Questions people ask
How many kW is one horsepower?
Mechanical horsepower is about 0.7457 kW; metric horsepower (PS) is 0.73549875 kW exactly.
What is the difference between hp and PS?
PS (metric horsepower) is 75 kilogram-force metres per second, about 1.4% less than mechanical hp. 100 PS is about 98.6 hp.
How many BTU per hour is one ton of air conditioning?
Exactly 12 000 BTU/h, about 3.517 kW.
Factors checked 19 October 2026.