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Units
Inches / mph
mm / km h
Every dimension highlighted rows exceed tolerance
What your speedometer will say
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Per 100 shown on the odometer
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Speed
Things to check before you buy
What others compare this against
Sizes that match your current diameter real sizes within 3% · tap to load
Numbers come from the nominal size printed on the sidewall. Real molded tires vary by a few millimetres between manufacturers — check the maker's published specs before ordering, and confirm rim width, load index and speed rating separately.
Accepts metric sizes (225/45R17) and flotation sizes (33X12.50R15), and labels everything back in the format you entered.