Section Width485 mm (19.1")
Aspect Ratio47%
Rim Diameter21"
Overall Diameter989 mm (39.0")
Sidewall Height228 mm
Circumference3108 mm
485/47R21 — Buy Tires

Everything to know about the 485/47R21 tire size

Size geometry

A 485/47R21 tire has a 485mm section width and a 47% aspect ratio, mounted on a 21-inch rim. Sidewall height works out to 227.9mm (8.97") and overall outside diameter is 989.3mm (38.95"). At highway speed the tire completes about 322 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 485/47R21 is unavailable, the closest same-diameter substitutes on the same rim are 475/48R21 and 495/46R21. 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 485/47R21 you can upsize to 495/43R22 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 475/51R20 (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 485/47R21 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 485/47R21

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