brake horsepower



  • noun the power developed by a tractor’s engine, calculated as the force applied to the brakes.

Cars & Driving

  • noun the power developed by an engine which is measured by a brake or dynamometer; often abbreviated as bhp.


  • The horsepower output of an engine or other mechanical device, as measured at the flywheel or belt by applying a mechanical brake and measuring the work per unit time.


  • A measure of the effective power output of an engine. It may be measured in various ways, one of which is to quantify the resistance the engine provides to a brake attached to its output shaft. Its abbreviation is bhp.