Power Converter — Power is energy per unit time. The watt is the SI unit. Horsepower persists in the US for engines, motors, and machinery; metric horsepower is used in the EU and Japan. BTU/h is common for heating and cooling capacity.
Conversions run locally in your browser. No values are sent anywhere.
Was Power Converter useful?
Power Converter是什么？
Power is energy per unit time. The watt is the SI unit. Horsepower persists in the US for engines, motors, and machinery; metric horsepower is used in the EU and Japan. BTU/h is common for heating and cooling capacity.
This converter uses the watt as the base. The math is local.
使用方法
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Enter a value
Type the power in any supported unit. The default is 1 kW.
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Pick the units
The from/to dropdowns cover all supported power units.
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Check the quick-reference table
For 1, 10, 100, 1000, 10000 W (or whatever the source unit is), the table shows the equivalent in the target unit.
示例
100 hp to kW
A 100-horsepower engine is about 74.6 kW.
100 hp
结果： ≈ 74.6 kW
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Last reviewed: 2026-09-25