Section Width165 mm (6.5")
Aspect Ratio203%
Rim Diameter11"
Overall Diameter949 mm (37.4")
Sidewall Height335 mm
Circumference2982 mm
165/203R11 — Buy Tires

Everything to know about the 165/203R11 tire size

Size geometry

A 165/203R11 tire has a 165mm section width and a 203% aspect ratio, mounted on a 11-inch rim. Sidewall height works out to 334.9mm (13.19") and overall outside diameter is 949.3mm (37.37"). At highway speed the tire completes about 335 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 165/203R11 is unavailable, the closest same-diameter substitutes on the same rim are 155/216R11 and 175/191R11. 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 165/203R11 you can upsize to 175/184R12 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 155/224R10 (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 165/203R11 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 165/203R11

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