Power Converter

Compare electrical, mechanical and thermal power ratings while keeping horsepower definitions distinct.

How power converter works

Values are normalized through watts. Mechanical horsepower is about 745.7 W; metric horsepower is 735.49875 W.

Example formula: kilowatts × 1.34102209 = mechanical horsepower

Accurate, private conversion

The conversion engine uses standardized constants and keeps calculation precision separate from display formatting. Your entered values stay in this browser and are not added to the URL or sent to the server.

Frequently asked questions

Which horsepower is used for cars?

It depends on market and convention. Mechanical hp and metric PS are both used, so they are separate here.

How is power different from energy?

A watt is one joule per second; energy accumulates as power operates over time.