Section Width445 mm (17.5")
Aspect Ratio26%
Rim Diameter31"
Overall Diameter1019 mm (40.1")
Sidewall Height116 mm
Circumference3201 mm
445/26R31 — Buy Tires

Everything to know about the 445/26R31 tire size

Size geometry

A 445/26R31 tire has a 445mm section width and a 26% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 115.7mm (4.56") and overall outside diameter is 1018.8mm (40.11"). At highway speed the tire completes about 312 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 445/26R31 is unavailable, the closest same-diameter substitutes on the same rim are 435/27R31 and 455/25R31. 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 445/26R31 you can upsize to 455/23R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 435/30R30 (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 445/26R31 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 445/26R31

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