Section Width205 mm (8.1")
Aspect Ratio28%
Rim Diameter21"
Overall Diameter648 mm (25.5")
Sidewall Height57 mm
Circumference2036 mm
205/28R21 — Buy Tires

Everything to know about the 205/28R21 tire size

Size geometry

A 205/28R21 tire has a 205mm section width and a 28% aspect ratio, mounted on a 21-inch rim. Sidewall height works out to 57.4mm (2.26") and overall outside diameter is 648.2mm (25.52"). At highway speed the tire completes about 491 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 205/28R21 is unavailable, the closest same-diameter substitutes on the same rim are 195/29R21 and 215/27R21. 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 205/28R21 you can upsize to 215/21R22 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 195/36R20 (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 205/28R21 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 205/28R21

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