Section Width275 mm (10.8")
Aspect Ratio138%
Rim Diameter10"
Overall Diameter1013 mm (39.9")
Sidewall Height380 mm
Circumference3182 mm
275/138R10 — Buy Tires

Everything to know about the 275/138R10 tire size

Size geometry

A 275/138R10 tire has a 275mm section width and a 138% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 379.5mm (14.94") and overall outside diameter is 1013.0mm (39.88"). At highway speed the tire completes about 314 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 275/138R10 is unavailable, the closest same-diameter substitutes on the same rim are 265/143R10 and 285/133R10. 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 275/138R10 you can upsize to 285/129R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 265/148R9 (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 275/138R10 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 275/138R10

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