Section Width115 mm (4.5")
Aspect Ratio72%
Rim Diameter30"
Overall Diameter928 mm (36.5")
Sidewall Height83 mm
Circumference2914 mm
115/72R30 — Buy Tires

Everything to know about the 115/72R30 tire size

Size geometry

A 115/72R30 tire has a 115mm section width and a 72% aspect ratio, mounted on a 30-inch rim. Sidewall height works out to 82.8mm (3.26") and overall outside diameter is 927.6mm (36.52"). At highway speed the tire completes about 343 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/72R30 is unavailable, the closest same-diameter substitutes on the same rim are 105/79R30 and 125/66R30. 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 115/72R30 you can upsize to 125/56R31 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/91R29 (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 115/72R30 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 115/72R30

tire_size.no_vehicles_found