Gear Ratio Calculator

Maximum engine speed rpm
Torque converter efficiency %
Top gear ratio 1 :
Final drive (differential) ratio 1 :
Tyre details / R
Rolling diameter 676 mm
Distance per wheel revolution 2.124 m
Propshaft speed 5850 rpm
Wheel speed 1504 rpm
Vehicle speed 120 mph
Engine speed at 70mph 3799 rpm

This conversion utility was jointly developed between FrozenMist and to aid you in configuring your vehicle to get the most out of it. To the best of our knowledge it provides a good quality of accuracy but we do advise that you should always double check your results to avoid any problems. We always welcome any advice/experience that people can give us to help us improve on these utilities so please contact either Mike or myself using the links below if you have any contributions.

email Mike.
email FrozenMist.