Section Width495 mm (19.5")
Aspect Ratio27%
Rim Diameter30"
Overall Diameter1029 mm (40.5")
Sidewall Height134 mm
Circumference3234 mm
495/27R30 — Buy Tires

Everything to know about the 495/27R30 tire size

Size geometry

A 495/27R30 tire has a 495mm section width and a 27% aspect ratio, mounted on a 30-inch rim. Sidewall height works out to 133.7mm (5.26") and overall outside diameter is 1029.3mm (40.52"). At highway speed the tire completes about 309 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 495/27R30 is unavailable, the closest same-diameter substitutes on the same rim are 485/28R30 and 505/26R30. 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 495/27R30 you can upsize to 505/24R31 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 485/30R29 (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 495/27R30 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 495/27R30

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