Section Width505 mm (19.9")
Aspect Ratio37%
Rim Diameter25"
Overall Diameter1009 mm (39.7")
Sidewall Height187 mm
Circumference3169 mm
505/37R25 — Buy Tires

Everything to know about the 505/37R25 tire size

Size geometry

A 505/37R25 tire has a 505mm section width and a 37% aspect ratio, mounted on a 25-inch rim. Sidewall height works out to 186.8mm (7.36") and overall outside diameter is 1008.7mm (39.71"). At highway speed the tire completes about 316 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 505/37R25 is unavailable, the closest same-diameter substitutes on the same rim are 495/38R25 and 515/36R25. 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 505/37R25 you can upsize to 515/34R26 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 495/40R24 (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 505/37R25 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 505/37R25

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