Tire Size Calculator
Enter a tire size to get diameter, sidewall, circumference, and revs per mile. Convert wheels and shop matching sizes.
Enter a tire size
225/65R17
Inch float28.5×8.9R17
Calculated specs
Overall diameter28.52″
Section width8.86″
Sidewall height5.76″
Circumference89.58″
Revs / mile707.3
Visualizer
Convert to a different wheel
Keep overall diameter within ±3% while changing rim size
Nearby alternate sizes
Within ±3% diameter (same rim ±2″)