Our torque to horsepower converter calculates power and horsepower from torque and rotational speed using the fundamental relationship: Power = Torque × Angular Velocity. The calculator supports multiple units and can work in reverse - calculating torque from horsepower and speed.

Calculation Steps

Converting torque to horsepower involves these steps:

1. Convert torque to N·m: If using lbf·ft, multiply by 1.35582
2. Convert speed to rad/s: If using RPM, multiply by 0.10472 (2π/60)
3. Calculate power: Multiply torque (N·m) by speed (rad/s) to get power in watts
4. Convert to horsepower: Divide power (W) by 745.70 for mechanical horsepower
5. Select horsepower type: Choose the appropriate type (mechanical, metric, electric, etc.)

Types of Horsepower

There are several types of horsepower used in different applications:

Torque vs. Horsepower

Understanding the difference between torque and horsepower is crucial. Torque is the twisting force that causes rotation, while horsepower is the rate at which work is done. High torque is important for acceleration and towing, while high horsepower is important for top speed and sustained performance.

Practical Applications

Torque to horsepower conversion is essential in many engineering and automotive applications. Engineers need to understand both metrics to design efficient systems, compare engine performance, and select appropriate motors and engines for specific applications.

Sources & References