Enter your engine's power in Kilowatts (kW), pick your Horsepower Type (mechanical, metric, or electrical), and this kW to HP Converter returns your Horsepower value alongside the Conversion Factor used and a Power Category that puts your engine's output in context.
Horsepower
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Conversion Factor
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Power Category
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Kilowatts (kW) is the metric unit of power in the International System of Units, while horsepower (HP) is an imperial unit. Both measure the rate of energy transfer, with 1 kW equal to approximately 1.341 mechanical horsepower.
To convert kilowatts to horsepower, multiply the kW value by 1.341 for mechanical HP or by 1.360 for metric HP (PS). The formula is: HP = kW × conversion factor.
Metric horsepower (PS) is based on the metric system and equals 735.5 watts, while mechanical horsepower (bhp) equals 745.7 watts. Metric HP is commonly used in Europe, while mechanical HP is used in the US.
Different regions prefer different units. European markets often use kW and metric HP (PS), while American markets use mechanical HP (bhp). Manufacturers provide both to meet regional preferences and regulations.
The conversion is mathematically precise as both units measure power. However, actual engine output may vary due to testing conditions, measurement standards, and whether it's measured at the flywheel or wheels.
Small economy cars typically range from 50-100 kW, mid-size vehicles from 100-200 kW, performance cars from 200-400 kW, and supercars can exceed 600 kW. Electric vehicles often have similar ranges.