Tire Size Calculator
Various Tire Size Change Calculations
Required Data Entry
Ring Gear and Pinion Ratio (3.08, 3.55, etc.)
Engine RPM
Target Vehicle MPH
Transmission Final Gear Ratio (2.54, 1.43, 1.00, etc.)
Calculated Results From Change Of YOur Entry
Speed Changes
Tire Size Changes
A
MPH Change To
MPH (-6%)
Inches
A
MPH Change To
MPH (-3%)
Inches
Tire Height - Your Entered Values
Inches
A
MPH Change To
MPH (+3%)
Inches
A
MPH Change To
MPH (+6%)
Inches
Tire Size Calculation Manual Entry
Required Data Entry
Ring Gear and Pinion Ratio (3.08, 3.55, etc.)
Engine RPM
Target Vehicle MPH
Transmission Final Gear Ratio (2.54, 1.43, 1.00, etc.)
Calculated Results
Tire Height Required
Inches
