Horsepower Calculator
Convert between mechanical, metric, and electrical horsepower, watts, and kilowatts. Calculate horsepower from torque and RPM.
Mode
Equivalents
100 HP (mech)
74.57 kW · 74,569.99 W
Conversion Table
| Unit | Value |
|---|
| HP – Mechanical | 100 |
| HP – Metric (PS) | 101.387 |
| HP – Electrical | 99.9598 |
| Kilowatts (kW) | 74.57 |
| Watts (W) | 74,569.99 |
| ft·lbf/s | 55,000 |
| BTU/hr | 254,443.24 |
HP Reference
| Type | Watts | Definition |
|---|
| Mechanical HP | 745.70 W | 550 ft·lbf/s |
| Metric HP (PS) | 735.50 W | 75 kgf·m/s |
| Electrical HP | 746 W | Exact by definition |