Section Width725 mm (28.5")
Aspect Ratio33%
Rim Diameter21"
Overall Diameter1012 mm (39.8")
Sidewall Height239 mm
Circumference3179 mm
725/33R21 — Buy Tires

Everything to know about the 725/33R21 tire size

Size geometry

A 725/33R21 tire has a 725mm section width and a 33% aspect ratio, mounted on a 21-inch rim. Sidewall height works out to 239.3mm (9.42") and overall outside diameter is 1011.9mm (39.84"). At highway speed the tire completes about 315 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 725/33R21 is unavailable, the closest same-diameter substitutes on the same rim are 715/33R21 and 735/33R21. 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 725/33R21 you can upsize to 735/31R22 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 715/35R20 (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 725/33R21 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 725/33R21

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