Section Width605 mm (23.8")
Aspect Ratio66%
Rim Diameter11"
Overall Diameter1078 mm (42.4")
Sidewall Height399 mm
Circumference3387 mm
605/66R11 — Buy Tires

Everything to know about the 605/66R11 tire size

Size geometry

A 605/66R11 tire has a 605mm section width and a 66% aspect ratio, mounted on a 11-inch rim. Sidewall height works out to 399.3mm (15.72") and overall outside diameter is 1078.0mm (42.44"). At highway speed the tire completes about 295 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 605/66R11 is unavailable, the closest same-diameter substitutes on the same rim are 595/67R11 and 615/65R11. 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 605/66R11 you can upsize to 615/63R12 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 595/69R10 (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 605/66R11 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 605/66R11

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