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Power: Enter a value to convert
| Horsepower (hp) | Kilowatts (kW) |
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Convert horsepower (hp) to kilowatts (kW) or vice versa effortlessly with this lightweight tool—ideal for automotive, engineering, and machinery applications!
Horsepower (hp) is an imperial unit of power, roughly the rate a horse could work, equal to 0.7457 kW. A kilowatt (kW) is a metric unit equal to 1,000 watts.
Horsepower was coined by James Watt in the late 18th century to market steam engines. The kilowatt emerged with the metric system in the 19th century.
Hp is common in the US and UK for vehicle engines and machinery. kW is used globally in science, engineering, and electric power industries.
Multiply the power in hp by 0.7457. For example, 100 hp × 0.7457 = 74.57 kW.
Yes, it uses the precise conversion factor of 1 hp = 0.7457 kW (mechanical horsepower), with results to 4 decimal places.
This uses mechanical horsepower (745.7 watts), standard for most applications, not metric horsepower (735.5 watts).