🛞 Tire Size Tools

Free online tire size calculators. Decode tire dimensions in seconds.

All Size Tools

Tire Size Calculator Decode tire size: width, aspect ratio, rim → diameter, circumference, revolutions per mile Tire Diameter Calculator Calculate overall tire diameter from metric size code in inches, mm, and cm Tire Circumference Calculator Calculate circumference and revolutions per mile from tire size Tire Height Calculator Calculate sidewall height from section width and aspect ratio Metric Tire Size to Inches Convert metric tire size (225/45R17) to overall diameter and width in inches