Metric → Imperial

Convert metric tire sizes (225/45R18) to imperial (26x8.9R18) and back. Instantly.

METRIC → IMPERIAL

Width (mm) — e.g. 225

Aspect Ratio (%) — e.g. 45

Rim Diameter (in) — e.g. 18

Imperial Size

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Overall Diameter (in) — e.g. 26

Section Width (in) — e.g. 8.9

Rim Diameter (in) — e.g. 18

Metric Size

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