The JDM Social Network

Tools

Welcome to our tools section. If you would like to suggest a tool you would find useful then please contact us here

RPM and gear speed calculator


The gear speed calculator allows you to enter your gear ratios, final drive ratio and driven tyre size and from this will calculate your estimated in-gear speeds at various RPM intervals. Especially useful is the compare feature, so you can easily see what difference changing wheels, gearbox or final drive will have on your car.

   The gear speed calculator is also available as an Android application from the Android market. Click here to visit the Android Market.