Section Width485 mm (19.1")
Aspect Ratio24%
Rim Diameter20"
Overall Diameter741 mm (29.2")
Sidewall Height116 mm
Circumference2327 mm
485/24R20 — Buy Tires

Everything to know about the 485/24R20 tire size

Size geometry

A 485/24R20 tire has a 485mm section width and a 24% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 116.4mm (4.58") and overall outside diameter is 740.8mm (29.17"). At highway speed the tire completes about 430 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 485/24R20 is unavailable, the closest same-diameter substitutes on the same rim are 475/25R20 and 495/24R20. 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 485/24R20 you can upsize to 495/21R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 475/27R19 (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 485/24R20 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 485/24R20

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