Section Width375 mm (14.8")
Aspect Ratio28%
Rim Diameter31"
Overall Diameter997 mm (39.3")
Sidewall Height105 mm
Circumference3133 mm
375/28R31 — Buy Tires

Everything to know about the 375/28R31 tire size

Size geometry

A 375/28R31 tire has a 375mm section width and a 28% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 105.0mm (4.13") and overall outside diameter is 997.4mm (39.27"). At highway speed the tire completes about 319 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 375/28R31 is unavailable, the closest same-diameter substitutes on the same rim are 365/29R31 and 385/27R31. 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 375/28R31 you can upsize to 385/24R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 365/32R30 (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 375/28R31 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 375/28R31

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