Section Width375 mm (14.8")
Aspect Ratio103%
Rim Diameter10"
Overall Diameter1027 mm (40.4")
Sidewall Height386 mm
Circumference3225 mm
375/103R10 — Buy Tires

Everything to know about the 375/103R10 tire size

Size geometry

A 375/103R10 tire has a 375mm section width and a 103% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 386.3mm (15.21") and overall outside diameter is 1026.5mm (40.41"). At highway speed the tire completes about 310 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 375/103R10 is unavailable, the closest same-diameter substitutes on the same rim are 365/106R10 and 385/100R10. 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 375/103R10 you can upsize to 385/97R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 365/109R9 (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 375/103R10 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 375/103R10

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