Section Width585 mm (23.0")
Aspect Ratio18%
Rim Diameter27"
Overall Diameter896 mm (35.3")
Sidewall Height105 mm
Circumference2816 mm
585/18R27 — Buy Tires

Everything to know about the 585/18R27 tire size

Size geometry

A 585/18R27 tire has a 585mm section width and a 18% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 105.3mm (4.15") and overall outside diameter is 896.4mm (35.29"). At highway speed the tire completes about 355 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 585/18R27 is unavailable, the closest same-diameter substitutes on the same rim are 575/18R27 and 595/18R27. 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 585/18R27 you can upsize to 595/16R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 575/21R26 (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 585/18R27 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 585/18R27

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