Engine Horsepower Calculator are used to estimate the engine horsepower of your vehicle based on the weight, the time, and the speed to finish a quarter mile run.

The weight to be used should include the mass of the vehicle, the driver, the passenger, and other load. The results of these calculator are estimations only.

Horsepower Calculation Method
The ET Method
This method uses the vehicle weight and the elapsed time (ET) to finish a quarter mile (402.3 meters).

The Trap-speed Method
This method uses the vehicle weight and the speed at which the vehicle finished a quarter mile (402.3 meters) . The speed to be used here should be the finishing speed at the quarter mile point.

The RPM Torque Method
This method uses the torque value from the vehicle manual book, The RPM should indicate the maximum torque output.

*This is a universal app that work for both iPhone and iPad.

Thanks for your support and do visit for more apps for your iOS devices.

What’s New

Version 1.1

- Update for Newest Devices
- Minor UI Update


Tan Chia Ling
17.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Finnish, French, German, Italian, Japanese, Russian, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
Rated 4+
© nitrio


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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