Section Width885 mm (34.8")
Aspect Ratio37%
Rim Diameter21"
Overall Diameter1188 mm (46.8")
Sidewall Height327 mm
Circumference3733 mm
885/37R21 — Buy Tires

Everything to know about the 885/37R21 tire size

Size geometry

A 885/37R21 tire has a 885mm section width and a 37% aspect ratio, mounted on a 21-inch rim. Sidewall height works out to 327.4mm (12.89") and overall outside diameter is 1188.3mm (46.78"). At highway speed the tire completes about 268 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 885/37R21 is unavailable, the closest same-diameter substitutes on the same rim are 875/37R21 and 895/37R21. 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 885/37R21 you can upsize to 895/35R22 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 875/39R20 (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 885/37R21 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 885/37R21

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