Section Width185 mm (7.3")
Aspect Ratio106%
Rim Diameter12"
Overall Diameter697 mm (27.4")
Sidewall Height196 mm
Circumference2190 mm
185/106R12 — Buy Tires

Everything to know about the 185/106R12 tire size

Size geometry

A 185/106R12 tire has a 185mm section width and a 106% aspect ratio, mounted on a 12-inch rim. Sidewall height works out to 196.1mm (7.72") and overall outside diameter is 697.0mm (27.44"). At highway speed the tire completes about 457 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 185/106R12 is unavailable, the closest same-diameter substitutes on the same rim are 175/112R12 and 195/101R12. 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 185/106R12 you can upsize to 195/94R13 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 175/119R11 (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 185/106R12 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 185/106R12

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