๐ Automotive
Horsepower Calculator
Horsepower is torque multiplied by engine speed, divided by 5,252 โ the constant that arrives because one horsepower is 33,000 foot-pounds per minute. That is why a high-revving engine can make big power with modest torque.
How it works
Torque
Engine speed
Vehicle weight
Drivetrain loss
Horsepower (crank)
Horsepower at the wheels
Power
Power to weight
Estimated quarter mile
Frequently asked questions
How do I use the Horsepower Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.