Horsepower Calculator

Calculate engine horsepower

Horsepower
Kilowatts
Torque (Nm)

The horsepower calculator determines engine power output from torque and RPM measurements. This helps understand actual engine performance and compare different vehicles.

Enter torque (in pound-feet) and RPM. The calculator shows horsepower, kilowatt equivalent, and torque in Newton-meters for international comparison.

Horsepower indicates how much work an engine can do over time, while torque measures rotational force. Both are important for understanding vehicle performance characteristics.

Quick Tips

  • Bookmark your most-used calculators for quick access
  • All calculations run locally in your browser
  • Share results easily with the copy button

Frequently Asked Questions

Torque is force; horsepower is work rate (torque × speed).

That's where HP numerically equals torque due to the conversion formula.

Depends on use: torque for towing/acceleration, HP for top speed.

Varies by vehicle; 150-200 HP adequate for sedans, 300+ for performance.

Engine modifications, forced induction, tuning (consult professionals).