Section Width155 mm (6.1")
Aspect Ratio117%
Rim Diameter20"
Overall Diameter871 mm (34.3")
Sidewall Height181 mm
Circumference2735 mm
155/117R20 — Buy Tires

Everything to know about the 155/117R20 tire size

Size geometry

A 155/117R20 tire has a 155mm section width and a 117% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 181.3mm (7.14") and overall outside diameter is 870.7mm (34.28"). At highway speed the tire completes about 366 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 155/117R20 is unavailable, the closest same-diameter substitutes on the same rim are 145/125R20 and 165/110R20. 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 155/117R20 you can upsize to 165/102R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/134R19 (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 155/117R20 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 155/117R20

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