Section Width115 mm (4.5")
Aspect Ratio76%
Rim Diameter20"
Overall Diameter683 mm (26.9")
Sidewall Height87 mm
Circumference2145 mm
115/76R20 — Buy Tires

Everything to know about the 115/76R20 tire size

Size geometry

A 115/76R20 tire has a 115mm section width and a 76% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 87.4mm (3.44") and overall outside diameter is 682.8mm (26.88"). At highway speed the tire completes about 466 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/76R20 is unavailable, the closest same-diameter substitutes on the same rim are 105/83R20 and 125/70R20. 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 115/76R20 you can upsize to 125/60R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/95R19 (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 115/76R20 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 115/76R20

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