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Difference between HP and BHP

  • HP stands for horsepower. It is the total output power of a system.
  • BHP stands for brake horsepower. It is the output power of the engine of a system.
  • HP is measured for the whole system and gives the efficiency of the system.
  • BHP is only measured for the engine of the system and gives the efficiency of the engine under ideal conditions.
  • HP doesn’t take the frictional and other power losses into account.
  • BHP includes the frictional and other power losses of the system.
  • HP is measured using a simple dynamometer.
  • BHP is measured using a brake type dynamometer.
  • HP Measurement :The dynamometer is connected to the engine, and a torque converter is used.
  • BHP Measurement: A brake is applied to the flywheel, and the intensity of this brake determines the BHP.

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