Horsepower Calculator from 1/4 mile time, Trap Speed & Weight

This calculator will estimate the amount of horsepower a car
is generating at the flywheel from the car's 1/4 mile time, trap speed and weight.

DragTimes App

NEW: Download the DragTimes App in the iTunes store to
obtain Density Altitude and use other great DragTimes functions on your iPhone, iPod or iPad!

1/4 mile time: Trap Speed: Weight of vehicle with driver (pounds): 1/4 mile time, trap speed and weight must be entered.