Horsepower to Kilowatts Converter
An online tool to convert horsepower to kilowatts and kilowatts to horsepower in a single field.
Type a value in either field — conversion is instant
About converting horsepower to kilowatts
Horsepower is a traditional unit of engine power, while the kilowatt is its modern SI equivalent. This calculator converts horsepower to kilowatts and kilowatts to horsepower in both directions.
It uses metric horsepower: 1 hp = 0.7355 kW, and 1 kW ≈ 1.3596 hp. Just enter a value in either field.
All calculations run locally in your browser and update instantly — nothing is uploaded, and the result is recomputed on the fly.
Why use this converter
Both directions at once
Convert horsepower to kilowatts and kilowatts to horsepower in one field with no mode switching.
Great for vehicles
Handy for engine power figures, taxes, and comparing car and machinery specs.
Instant conversion
Results appear as you type, with no buttons or waiting.
Frequently asked questions
How many kilowatts are in one horsepower?
One metric horsepower equals 0.7355 kilowatts. For example, 100 hp is about 73.55 kW.
How do I convert kilowatts to horsepower?
Divide kilowatts by 0.7355, or multiply by 1.3596. For example, 90 kW ≈ 122.4 hp.
Which horsepower does this use?
It uses metric horsepower (PS), common in Europe, equal to 735.5 watts. Mechanical hp differs slightly.
Can I convert decimal values?
Yes, enter any number, including decimals such as 1.6 kW or 150.5 hp.
Is my data stored?
No, all calculations happen locally in your browser and nothing is sent to a server.