Horsepower Calculator

Horsepower Calculator

These calculators will help you figure out your estimated horsepower. Fill in the fields below and click the "Calculate HP" button. Please remember these numbers are only estimations, to find your actual horsepower you should use a Dyno. JavaScript must be enabled in your browser for the calculation to work.

 

Calculate HP from Trap Speed

Vehicle weight in pounds (including driver)
lbs

 Trap speed at end of 1/4 mi in m.p.h.
m.p.h.


You are making : HP at the rear wheels and HP at the flywheel*.

*Note:  Assuming a 18% drive train loss.

Calculate HP from ET

Vehicle weight in pounds (including driver)
lbs

ET in seconds
sec


You are making : HP at the rear wheels and HP at the flywheel*.

*Note:  Assuming a 18% drive train loss.