Section Width115 mm (4.5")
Aspect Ratio192%
Rim Diameter12"
Overall Diameter746 mm (29.4")
Sidewall Height221 mm
Circumference2345 mm
115/192R12 — Buy Tires

Everything to know about the 115/192R12 tire size

Size geometry

A 115/192R12 tire has a 115mm section width and a 192% aspect ratio, mounted on a 12-inch rim. Sidewall height works out to 220.8mm (8.69") and overall outside diameter is 746.4mm (29.39"). At highway speed the tire completes about 426 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/192R12 is unavailable, the closest same-diameter substitutes on the same rim are 105/210R12 and 125/177R12. 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 115/192R12 you can upsize to 125/166R13 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/222R11 (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 115/192R12 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 115/192R12

tire_size.no_vehicles_found