Tacoma Tire Calculator

Compare stock vs new tire sizes and see the differences.

Results
Stock Diameter
New Diameter
Difference
Speedometer Error
Ground Clearance Change
Diameter Ratio
Formula: Diameter (in) = (Width * Aspect / 1270) + Rim. Speed error = (1 - stockDiameter/newDiameter)*100. Clearance change = (newDiameter - stockDiameter)/2. Effective gear ratio = newDiameter/stockDiameter.