Section Width225 mm (8.9")
Aspect Ratio103%
Rim Diameter55"
Overall Diameter1861 mm (73.3")
Sidewall Height232 mm
Circumference5845 mm
225/103R55 — Buy Tires

Everything to know about the 225/103R55 tire size

Size geometry

A 225/103R55 tire has a 225mm section width and a 103% aspect ratio, mounted on a 55-inch rim. Sidewall height works out to 231.8mm (9.12") and overall outside diameter is 1860.5mm (73.25"). At highway speed the tire completes about 171 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 225/103R55 is unavailable, the closest same-diameter substitutes on the same rim are 215/108R55 and 235/99R55. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 225/103R55 you can upsize to 235/93R56 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 215/114R54 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 225/103R55 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 225/103R55

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