Section Width305 mm (12.0")
Aspect Ratio90%
Rim Diameter10"
Overall Diameter803 mm (31.6")
Sidewall Height275 mm
Circumference2523 mm
305/90R10 — Buy Tires

Everything to know about the 305/90R10 tire size

Size geometry

A 305/90R10 tire has a 305mm section width and a 90% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 274.5mm (10.81") and overall outside diameter is 803.0mm (31.61"). At highway speed the tire completes about 396 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 305/90R10 is unavailable, the closest same-diameter substitutes on the same rim are 295/93R10 and 315/87R10. 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 305/90R10 you can upsize to 315/83R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 295/97R9 (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 305/90R10 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 305/90R10

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