Calculate engine power from torque and RPM. Compare different engine types and understand power output characteristics.
Horsepower is a unit of measurement for power, representing the rate at which work is done. In automotive terms, it measures engine output.
Torque is rotational force, while horsepower is the rate at which that torque is applied over time (work done per unit time).
Brake horsepower (BHP) is measured at the engine crankshaft. Wheel horsepower (WHP) is measured at the wheels after drivetrain losses.
Engines produce different power at different RPMs. Peak horsepower usually occurs at high RPMs while peak torque occurs at mid-range RPMs.
More important than raw horsepower is power-to-weight ratio. This determines acceleration and performance characteristics.
Use this calculator to compare different engine setups, plan modifications, or understand vehicle specifications better.