Full formTechnology
BHPstands forBrake Horsepower
Full Form of BHP
What is BHP?
Brake Horsepower (BHP) is a unit of measurement for the power output of an engine, specifically the power available at the engine's crankshaft or output shaft before losses from the transmission and other drivetrain components. The term 'brake' originates from the use of a braking mechanism, such as a prony brake or dynamometer, to apply a load and measure torque. In the Indian automotive context, BHP is widely used by manufacturers and reviewers to specify engine performance in cars, motorcycles, and commercial vehicles. It is a key parameter for buyers comparing vehicle power, especially in segments like hatchbacks, SUVs, and performance bikes. BHP is also taught in Indian engineering curricula, particularly in mechanical and automotive engineering streams, and appears in competitive exams like GATE and SSC JE under thermodynamics and IC engines. While Horsepower (HP) is often used interchangeably, BHP specifically refers to the gross output at the engine, excluding auxiliary loads. Understanding BHP helps Indian consumers make informed choices about vehicle efficiency and capability. Its relevance extends to industrial engines, generators, and pumps, where power ratings guide selection. In India, emission norms and fuel economy standards have made BHP figures a critical part of vehicle documentation and advertising.
BHP का फुल फॉर्म
ब्रेक हॉर्सपावर
Example
The new Maruti Swift Dzire produces a maximum power of 90 BHP from its 1.2-litre petrol engine.
BHP — frequently asked questions
What is the full form of BHP?
The full form of BHP is Brake Horsepower, a unit that measures the power output of an engine before losses from the transmission.
What is the difference between BHP and HP in cars?
BHP (Brake Horsepower) measures power at the engine crankshaft without accounting for frictional losses, while HP (Horsepower) often refers to net power at the wheels. In practice, BHP is higher than wheel HP.
How is BHP measured in Indian vehicles?
BHP is measured using a dynamometer that applies a braking load to the engine. The resulting torque and rotational speed are used to calculate power, typically reported at a specific RPM.