MPH fix through SCT

['14 Shelby]

My MPH seems a little off and I want to update the rim/tire Revs/Mile but not sure how to do the math. Anyone?

 

[momogt]

just google tire size calculator that's what I did

 

[momogt]

http://tire-size-conversion.com/tire-size-calculator/

 

['14 Shelby]

Thanks... I got 703.5