Section Width285 mm (11.2")
Aspect Ratio163%
Rim Diameter38"
Overall Diameter1894 mm (74.6")
Sidewall Height465 mm
Circumference5951 mm
285/163R38 — Buy Tires

Everything to know about the 285/163R38 tire size

Size geometry

A 285/163R38 tire has a 285mm section width and a 163% aspect ratio, mounted on a 38-inch rim. Sidewall height works out to 464.6mm (18.29") and overall outside diameter is 1894.3mm (74.58"). At highway speed the tire completes about 168 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 285/163R38 is unavailable, the closest same-diameter substitutes on the same rim are 275/169R38 and 295/157R38. 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 285/163R38 you can upsize to 295/153R39 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 275/174R37 (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 285/163R38 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 285/163R38

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