Section Width385 mm (15.2")
Aspect Ratio20%
Rim Diameter27"
Overall Diameter840 mm (33.1")
Sidewall Height77 mm
Circumference2638 mm
385/20R27 — Buy Tires

Everything to know about the 385/20R27 tire size

Size geometry

A 385/20R27 tire has a 385mm section width and a 20% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 77.0mm (3.03") and overall outside diameter is 839.8mm (33.06"). At highway speed the tire completes about 379 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 385/20R27 is unavailable, the closest same-diameter substitutes on the same rim are 375/21R27 and 395/19R27. 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 385/20R27 you can upsize to 395/16R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 375/24R26 (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 385/20R27 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 385/20R27

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