Section Width195 mm (7.7")
Aspect Ratio137%
Rim Diameter18"
Overall Diameter992 mm (39.0")
Sidewall Height267 mm
Circumference3115 mm
195/137R18 — Buy Tires

Everything to know about the 195/137R18 tire size

Size geometry

A 195/137R18 tire has a 195mm section width and a 137% aspect ratio, mounted on a 18-inch rim. Sidewall height works out to 267.1mm (10.52") and overall outside diameter is 991.5mm (39.04"). At highway speed the tire completes about 321 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 195/137R18 is unavailable, the closest same-diameter substitutes on the same rim are 185/144R18 and 205/130R18. 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 195/137R18 you can upsize to 205/124R19 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 185/151R17 (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 195/137R18 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 195/137R18

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