Section Width425 mm (16.7")
Aspect Ratio44%
Rim Diameter20"
Overall Diameter882 mm (34.7")
Sidewall Height187 mm
Circumference2771 mm
425/44R20 — Buy Tires

Everything to know about the 425/44R20 tire size

Size geometry

A 425/44R20 tire has a 425mm section width and a 44% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 187.0mm (7.36") and overall outside diameter is 882.0mm (34.72"). At highway speed the tire completes about 361 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 425/44R20 is unavailable, the closest same-diameter substitutes on the same rim are 415/45R20 and 435/43R20. 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 425/44R20 you can upsize to 435/40R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 415/48R19 (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 425/44R20 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 425/44R20

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