Classic tool
Horsepower Calculator
Convert torque and RPM into horsepower, kilowatts and metric horsepower.
Use this horsepower calculator to turn torque and engine speed into usable power figures in seconds. It is helpful for cars, motorcycles, dyno sheets, engine tuning, machinery and spec-sheet comparisons when you want to understand how rotational force and RPM combine into output power.
Enter torque, RPM and the torque unit to get the result in horsepower, kilowatts and metric horsepower (PS). That makes it easier to compare numbers across markets, read dyno graphs and convert between imperial and metric references without external tables.
Because power changes with both torque and speed, this tool is also practical for fast estimates in mechanical projects, automotive study and technical content. You get the most common output formats in one place with no manual formula work.
Use clear inputs to get a more useful result.