What is the formula for converting engine net power to horsepower?
2 Answers
Engine net power conversion to horsepower formula is 1 metric horsepower = 75 kilogram-force·meter/second = 735 watts. The following is relevant information about engines: 1. Concept: An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. 2. Classification: Internal combustion engines, external combustion engines (meaning fuel burns outside the engine), gas turbines, jet engines.
Every time I chat about cars with friends, explaining how to convert net power to horsepower is quite interesting. The formula is horsepower = net power (in kilowatts) × 1.341, because 1 kilowatt is approximately equal to 1.341 horsepower. Net power is the actual output value of the engine, often seen in car reviews. For example, a car with a net power of 100 kilowatts calculates to about 134 horsepower. Don’t underestimate this conversion—it helps us compare performance more intuitively when choosing a car. Some SUVs with higher horsepower are better for off-roading, but for family cars, 120-150 horsepower is sufficient, being both fuel-efficient and safe. It’s advisable to pay attention to the numbers in the car manual to avoid being misled by advertisements.