Section Width475 mm (18.7")
Aspect Ratio21%
Rim Diameter27"
Overall Diameter885 mm (34.9")
Sidewall Height100 mm
Circumference2781 mm
475/21R27 — Buy Tires

Everything to know about the 475/21R27 tire size

Size geometry

A 475/21R27 tire has a 475mm section width and a 21% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 99.8mm (3.93") and overall outside diameter is 885.3mm (34.85"). At highway speed the tire completes about 360 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 475/21R27 is unavailable, the closest same-diameter substitutes on the same rim are 465/21R27 and 485/21R27. 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 475/21R27 you can upsize to 485/18R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 465/24R26 (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 475/21R27 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 475/21R27

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