How to Calculate Car Horsepower?
1 Answers
Horsepower is measured in PS, commonly known as 'horse'. Here is an introduction to calculating car horsepower: 1. Calculation formula: Car horsepower refers to the engine power unit, which is the engine's working capacity per unit time. Power is calculated from torque, and the formula is: Power (w) = 2π × Torque (N-m) × Speed (rpm)/60. After simplification, it becomes: Power (kw) = Torque (N-m) × Speed (rpm)/9549. 2. Introduction to horsepower: Horsepower is a commonly used unit of power measurement in engineering technology. It is a physical quantity that measures the top speed of a car—the higher the horsepower, the higher the top speed. Torque is a physical quantity that measures the acceleration ability of a car—the greater the torque, the better the acceleration performance. Maximum power is usually expressed in horsepower (PS) or kilowatts (kw), with 1 horsepower equal to 0.735 kilowatts.