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Tyre, Transfer & Diff Calculator
Transmission

If required, you can manually enter your transmission gear ratios in the fields below.

For more information regarding transmissions/gearboxes refer to Engine & Gearbox Information

Diff Ratio:

This may also be referred to as "Axle (Gear) Ratio".

Tyre & Wheel Size
Width: 
Sidewall Height: 
Wheel Diameter:   
or    Diameter (inches): 
Transfer Case
 

High Range:  

Low Range:  

Engine RPM

Engine RPM:

Final Calculations

These speeds are calculated from the above information. Due to slight differences in your setup, the actual speeds may be slightly different.

 

Transmission Gears
Ratio
High Range
KPH
Low Range
KPH
1st Gear
2nd Gear
3rd Gear
4th Gear
5th Gear
6th Gear
Reverse Gear