Power Converter
Convert power between watts, kilowatts and horsepower.
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All units
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● Conversions are calculated in your browser. Nothing is sent anywhere.
How it works
Conversions go through the watt (1 J/s). Mechanical horsepower (hp) is 745.7 W; metric horsepower (PS, ch, CV) used for European cars is 735.5 W. Air conditioners are often rated in BTU/h: 12,000 BTU/h ≈ 3.5 kW.