Section Width295 mm (11.6")
Aspect Ratio39%
Rim Diameter18"
Overall Diameter687 mm (27.1")
Sidewall Height115 mm
Circumference2159 mm
295/39R18 — Buy Tires

Everything to know about the 295/39R18 tire size

Size geometry

A 295/39R18 tire has a 295mm section width and a 39% aspect ratio, mounted on a 18-inch rim. Sidewall height works out to 115.0mm (4.53") and overall outside diameter is 687.3mm (27.06"). At highway speed the tire completes about 463 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 295/39R18 is unavailable, the closest same-diameter substitutes on the same rim are 285/40R18 and 305/38R18. 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 295/39R18 you can upsize to 305/34R19 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 285/45R17 (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 295/39R18 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 295/39R18

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