Horsepower Calculator
Calculate Engine Power
Power Results
Enter values to calculate engine power
Power & Torque Guide
Understanding Power Ratings
Power Categories
- Economy: Less than 150 HP
- Standard: 150-199 HP
- Performance: 200-299 HP
- Sports Car: 300-499 HP
- High Performance: 500+ HP
Common Applications
- Compact Cars: 100-180 HP
- Family Sedans: 170-250 HP
- Sports Cars: 300-500 HP
- Supercars: 500+ HP
- Heavy Trucks: 400-600 HP
Power Unit Conversions
Power Units
- 1 HP = 0.7457 kW
- 1 HP = 1.014 PS
- 1 kW = 1.341 HP
- 1 PS = 0.9863 HP
Torque Units
- 1 ft-lb = 1.356 Nm
- 1 Nm = 0.7376 ft-lb
- HP = (Torque × RPM) ÷ 5252
Important Notes
- Horsepower and torque are related but measure different aspects of engine performance
- Peak horsepower typically occurs at higher RPMs than peak torque
- Different regions use different power measurements (HP, PS, kW)
- Engine power can vary based on atmospheric conditions and altitude