Section Width115 mm (4.5")
Aspect Ratio312%
Rim Diameter10"
Overall Diameter972 mm (38.3")
Sidewall Height359 mm
Circumference3052 mm
115/312R10 — Buy Tires

Everything to know about the 115/312R10 tire size

Size geometry

A 115/312R10 tire has a 115mm section width and a 312% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 358.8mm (14.13") and overall outside diameter is 971.6mm (38.25"). At highway speed the tire completes about 328 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/312R10 is unavailable, the closest same-diameter substitutes on the same rim are 105/342R10 and 125/287R10. 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 115/312R10 you can upsize to 125/277R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/354R9 (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 115/312R10 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 115/312R10

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