Section Width125 mm (4.9")
Aspect Ratio356%
Rim Diameter38"
Overall Diameter1855 mm (73.0")
Sidewall Height445 mm
Circumference5828 mm
125/356R38 — Buy Tires

Everything to know about the 125/356R38 tire size

Size geometry

A 125/356R38 tire has a 125mm section width and a 356% aspect ratio, mounted on a 38-inch rim. Sidewall height works out to 445.0mm (17.52") and overall outside diameter is 1855.2mm (73.04"). At highway speed the tire completes about 172 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/356R38 is unavailable, the closest same-diameter substitutes on the same rim are 115/387R38 and 135/330R38. 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 125/356R38 you can upsize to 135/320R39 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/398R37 (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 125/356R38 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 125/356R38

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