Section Width235 mm (9.3")
Aspect Ratio58%
Rim Diameter18"
Overall Diameter730 mm (28.7")
Sidewall Height136 mm
Circumference2293 mm
235/58R18 — Buy Tires

Everything to know about the 235/58R18 tire size

Size geometry

A 235/58R18 tire has a 235mm section width and a 58% aspect ratio, mounted on a 18-inch rim. Sidewall height works out to 136.3mm (5.37") and overall outside diameter is 729.8mm (28.73"). At highway speed the tire completes about 436 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 235/58R18 is unavailable, the closest same-diameter substitutes on the same rim are 225/61R18 and 245/56R18. 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 235/58R18 you can upsize to 245/50R19 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 225/66R17 (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 235/58R18 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 235/58R18

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