Tyre Size Calculator


Manufacturer's Suggested Tyre Size *

1) Select a tire tread width in MM (Inches)

2) Select an Aspect Ratio (tire height/width)

3) Select a Rim Diameter in inches

Overall Wheel diameter in Inches
ALTERNATE or Desired Tyre Size

4) Select a tire tread width in MM (Inches)

5) Select an Aspect Ratio (tire height/width)

6) Select a Rim Diameter in inches

Overall Wheel diameter in Inches

Changing the tire diameter will CHANGE the vehicle speed for the same motor RPM!

This ALTERNATE tyre size will change the actual vehicle speed to

mph, when the odometer reads exactly 65mph.


* It is possible to specify non-existent tyre sizes.
The Manufacturer's suggested tyre size may be found
in the manual or on the edge of the open driver's door.
MM = millimeters metric system, 25.4 mm = 1 inch.

 

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