Section Width375 mm (14.8")
Aspect Ratio20%
Rim Diameter27"
Overall Diameter836 mm (32.9")
Sidewall Height75 mm
Circumference2626 mm
375/20R27 — Buy Tires

Everything to know about the 375/20R27 tire size

Size geometry

A 375/20R27 tire has a 375mm section width and a 20% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 75.0mm (2.95") and overall outside diameter is 835.8mm (32.91"). At highway speed the tire completes about 381 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 375/20R27 is unavailable, the closest same-diameter substitutes on the same rim are 365/21R27 and 385/19R27. 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 375/20R27 you can upsize to 385/16R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 365/24R26 (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 375/20R27 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 375/20R27

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