Tire Size Calculator

Calculate tire sidewall, overall diameter, circumference, and optional speedometer difference.

Overall tire diameter

26.74 in

679.3 mm

Sidewall123.8 mm

Overall diameter26.74 in (679.3 mm)

Circumference2,134.1 mm

Revolutions per mile754

About the Tire Size Calculator

Calculate tire sidewall, overall diameter, circumference, and optional speedometer difference.

It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.

Common searches

tire comparison
wheel size
speedometer

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