How to Calculate Horsepower?

1 Answers
VonTheo
07/24/25 7:19pm
Horsepower is a unit of measurement for power. One horsepower equals 0.735 kilowatts. As long as you know the power, you can convert it to horsepower. The formula for calculating power is: Power = Torque × RPM / 9549. Horsepower is a commonly used unit of measurement for power in engineering. Below is additional information: 1. Horsepower was proposed by James Watt. One horsepower is approximately equal to 735 watts. It generally refers to metric horsepower rather than imperial horsepower. One horsepower equals the work of 75 kilogram-force meters per second, also equal to 0.735 kilowatts, or metric horsepower. One imperial horsepower equals 550 foot-pounds per second, or 76 kilogram-force meters per second, which is 0.746 kilowatts. In China's legal measurement units, the unit for power is the watt. 2. Maximum horsepower is the same as maximum power; they are the same concept but with different units. The unit for maximum horsepower is Ps (horsepower), while the unit for maximum power is kW (kilowatts). The conversion between the two is: 1 horsepower ≈ 0.735 kilowatts, and 1 kilowatt ≈ 1.36 horsepower. Maximum power (maximum horsepower) is an important data point for a car's engine and a key indicator for evaluating a vehicle's performance. Power refers to the work done by an object per unit of time, and the engine's maximum power is directly related to RPM. The higher the power, the higher the RPM, and the higher the car's top speed. Therefore, maximum power is often used to describe a car's performance capabilities.
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