Section Width945 mm (37.2")
Aspect Ratio12%
Rim Diameter28"
Overall Diameter938 mm (36.9")
Sidewall Height113 mm
Circumference2947 mm
945/12R28 — Buy Tires

Everything to know about the 945/12R28 tire size

Size geometry

A 945/12R28 tire has a 945mm section width and a 12% aspect ratio, mounted on a 28-inch rim. Sidewall height works out to 113.4mm (4.46") and overall outside diameter is 938.0mm (36.93"). At highway speed the tire completes about 339 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 945/12R28 is unavailable, the closest same-diameter substitutes on the same rim are 935/12R28 and 955/12R28. 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 945/12R28 you can upsize to 955/11R29 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 935/13R27 (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 945/12R28 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 945/12R28

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