Section Width345 mm (13.6")
Aspect Ratio23%
Rim Diameter27"
Overall Diameter845 mm (33.3")
Sidewall Height79 mm
Circumference2653 mm
345/23R27 — Buy Tires

Everything to know about the 345/23R27 tire size

Size geometry

A 345/23R27 tire has a 345mm section width and a 23% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 79.3mm (3.12") and overall outside diameter is 844.5mm (33.25"). At highway speed the tire completes about 377 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 345/23R27 is unavailable, the closest same-diameter substitutes on the same rim are 335/24R27 and 355/22R27. 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 345/23R27 you can upsize to 355/19R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 335/27R26 (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 345/23R27 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 345/23R27

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