OceanCalc

Horsepower Calculator

Calculate horsepower from torque, wheel HP to crank HP, or estimate from displacement.

Horsepower Calculator
lb-ft
Horsepower Formula
HP = (Torque × RPM) / 5252

Where:

  • Torque is measured in lb-ft (pound-feet)
  • RPM is engine revolutions per minute
  • 5252 is a constant (33,000 ft-lb/min ÷ 2π)
Reference
1 HP= 0.7457 kW
1 kW= 1.341 HP
1 HP= 550 ft-lb/s
Power Output
Horsepower314.2 HP
Kilowatts234.3 kW
Torque300 lb-ft
RPM5500