Section Width685 mm (27.0")
Aspect Ratio16%
Rim Diameter27"
Overall Diameter905 mm (35.6")
Sidewall Height110 mm
Circumference2843 mm
685/16R27 — Buy Tires

Everything to know about the 685/16R27 tire size

Size geometry

A 685/16R27 tire has a 685mm section width and a 16% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 109.6mm (4.31") and overall outside diameter is 905.0mm (35.63"). At highway speed the tire completes about 352 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 685/16R27 is unavailable, the closest same-diameter substitutes on the same rim are 675/16R27 and 695/16R27. 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 685/16R27 you can upsize to 695/14R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 675/18R26 (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 685/16R27 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 685/16R27

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