Engine Horsepower Calculator
Calculate vehicle horsepower using Elapsed Time (ET) or Trap-Speed methods with unit conversions.
The Elapsed Time (ET) Method
This method uses the vehicle weight and the elapsed time (ET) to finish a quarter mile (402.3 meters) on the formula of Horsepower = Weight / (ET / 5.825)³
Elapsed Time Result
0 horsepower
The Trap-Speed Method
This method uses the vehicle weight and the speed at which the vehicle finished a quarter mile (402.3 meters) on the formula of Horsepower = Weight × (Speed / 234)³. The speed used should be the speed attained at the quarter-mile point, not the average speed.
Trap-Speed Result
0 horsepower