Section Width445 mm (17.5")
Aspect Ratio20%
Rim Diameter28"
Overall Diameter889 mm (35.0")
Sidewall Height89 mm
Circumference2794 mm
445/20R28 — Buy Tires

Everything to know about the 445/20R28 tire size

Size geometry

A 445/20R28 tire has a 445mm section width and a 20% aspect ratio, mounted on a 28-inch rim. Sidewall height works out to 89.0mm (3.50") and overall outside diameter is 889.2mm (35.01"). At highway speed the tire completes about 358 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 445/20R28 is unavailable, the closest same-diameter substitutes on the same rim are 435/20R28 and 455/20R28. 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 445/20R28 you can upsize to 455/17R29 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 435/23R27 (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 445/20R28 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 445/20R28

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