Section Width235 mm (9.3")
Aspect Ratio236%
Rim Diameter31"
Overall Diameter1897 mm (74.7")
Sidewall Height555 mm
Circumference5958 mm
235/236R31 — Buy Tires

Everything to know about the 235/236R31 tire size

Size geometry

A 235/236R31 tire has a 235mm section width and a 236% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 554.6mm (21.83") and overall outside diameter is 1896.6mm (74.67"). At highway speed the tire completes about 168 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 235/236R31 is unavailable, the closest same-diameter substitutes on the same rim are 225/246R31 and 245/226R31. 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 235/236R31 you can upsize to 245/221R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 225/252R30 (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 235/236R31 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 235/236R31

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