Section Width255 mm (10.0")
Aspect Ratio190%
Rim Diameter37"
Overall Diameter1909 mm (75.2")
Sidewall Height485 mm
Circumference5997 mm
255/190R37 — Buy Tires

Everything to know about the 255/190R37 tire size

Size geometry

A 255/190R37 tire has a 255mm section width and a 190% aspect ratio, mounted on a 37-inch rim. Sidewall height works out to 484.5mm (19.07") and overall outside diameter is 1908.8mm (75.15"). At highway speed the tire completes about 167 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 255/190R37 is unavailable, the closest same-diameter substitutes on the same rim are 245/198R37 and 265/183R37. 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 255/190R37 you can upsize to 265/178R38 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 245/203R36 (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 255/190R37 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 255/190R37

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