Section Width675 mm (26.6")
Aspect Ratio30%
Rim Diameter30"
Overall Diameter1167 mm (45.9")
Sidewall Height203 mm
Circumference3666 mm
675/30R30 — Buy Tires

Everything to know about the 675/30R30 tire size

Size geometry

A 675/30R30 tire has a 675mm section width and a 30% aspect ratio, mounted on a 30-inch rim. Sidewall height works out to 202.5mm (7.97") and overall outside diameter is 1167.0mm (45.94"). At highway speed the tire completes about 273 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 675/30R30 is unavailable, the closest same-diameter substitutes on the same rim are 665/30R30 and 685/30R30. 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 675/30R30 you can upsize to 685/28R31 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 665/32R29 (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 675/30R30 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 675/30R30

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