KW to HP converter

How to convert kilowatts to horsepower

To convert kilowatts to horsepower, use hp = kW × 1.34102. For example, 100 kW is 134.102 hp. Type any value in the converter above and the result updates instantly.

The KW to HP formula

The conversion is hp = kW × 1.34102. One kilowatt equals 1.34102 hp. This conversion is exact: kilowatt is defined precisely in terms of horsepower, so the only rounding is in the digits shown.

KW to HP conversion table

Where kilowatts and horsepower are used

Kilowatts are the SI unit of power: engines, motors, appliances and solar panels.

Horsepower is the traditional rating of engines and motors, especially in the United States and the United Kingdom.

Worked examples

These examples use the formula above, so you can check the converter or do the same by hand:

• 5 kW = 6.70511 hp
• 25 kW = 33.5256 hp
• 75 kW = 100.577 hp

Converting kilowatts to horsepower in your head

Multiply by 1.34: 50 kW is about 67 hp (exactly 67.05 hp).

HP to KW reference table

For the opposite direction, these values are handy to have at hand:

Common mistakes to avoid

• Mechanical horsepower (745.7 W) and metric horsepower (735.5 W) differ slightly; this converter uses the mechanical horsepower.
• Engine power and electric power ratings are measured under different conditions.

About this converter

The converter accepts whole numbers, decimals and negative values, gives the result as you type, and uses full precision internally, so what you copy is as accurate as it can be. It runs in your browser: nothing you type is sent to a server, it keeps working offline once the page has loaded, and there is nothing to install.

Need the opposite direction? Use the HP to KW converter.