Section Width325 mm (12.8")
Aspect Ratio115%
Rim Diameter12"
Overall Diameter1052 mm (41.4")
Sidewall Height374 mm
Circumference3306 mm
325/115R12 — Buy Tires

Everything to know about the 325/115R12 tire size

Size geometry

A 325/115R12 tire has a 325mm section width and a 115% aspect ratio, mounted on a 12-inch rim. Sidewall height works out to 373.8mm (14.71") and overall outside diameter is 1052.3mm (41.43"). At highway speed the tire completes about 302 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 325/115R12 is unavailable, the closest same-diameter substitutes on the same rim are 315/119R12 and 335/112R12. 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 325/115R12 you can upsize to 335/108R13 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 315/123R11 (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 325/115R12 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 325/115R12

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