Section Width185 mm (7.3")
Aspect Ratio246%
Rim Diameter38"
Overall Diameter1875 mm (73.8")
Sidewall Height455 mm
Circumference5892 mm
185/246R38 — Buy Tires

Everything to know about the 185/246R38 tire size

Size geometry

A 185/246R38 tire has a 185mm section width and a 246% aspect ratio, mounted on a 38-inch rim. Sidewall height works out to 455.1mm (17.92") and overall outside diameter is 1875.4mm (73.83"). At highway speed the tire completes about 170 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 185/246R38 is unavailable, the closest same-diameter substitutes on the same rim are 175/260R38 and 195/233R38. 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 185/246R38 you can upsize to 195/227R39 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 175/267R37 (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 185/246R38 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 185/246R38

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