Section Width815 mm (32.1")
Aspect Ratio17%
Rim Diameter28"
Overall Diameter988 mm (38.9")
Sidewall Height139 mm
Circumference3105 mm
815/17R28 — Buy Tires

Everything to know about the 815/17R28 tire size

Size geometry

A 815/17R28 tire has a 815mm section width and a 17% aspect ratio, mounted on a 28-inch rim. Sidewall height works out to 138.6mm (5.45") and overall outside diameter is 988.3mm (38.91"). At highway speed the tire completes about 322 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 815/17R28 is unavailable, the closest same-diameter substitutes on the same rim are 805/17R28 and 825/17R28. 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 815/17R28 you can upsize to 825/15R29 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 805/19R27 (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 815/17R28 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 815/17R28

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