Section Width185 mm (7.3")
Aspect Ratio30%
Rim Diameter14"
Overall Diameter467 mm (18.4")
Sidewall Height56 mm
Circumference1466 mm
185/30R14 — Buy Tires

Everything to know about the 185/30R14 tire size

Size geometry

A 185/30R14 tire has a 185mm section width and a 30% aspect ratio, mounted on a 14-inch rim. Sidewall height works out to 55.5mm (2.19") and overall outside diameter is 466.6mm (18.37"). At highway speed the tire completes about 682 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 185/30R14 is unavailable, the closest same-diameter substitutes on the same rim are 175/32R14 and 195/28R14. 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 185/30R14 you can upsize to 195/22R15 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 175/39R13 (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 185/30R14 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 185/30R14

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