Section Width225 mm (8.9")
Aspect Ratio42%
Rim Diameter25"
Overall Diameter824 mm (32.4")
Sidewall Height95 mm
Circumference2589 mm
225/42R25 — Buy Tires

Everything to know about the 225/42R25 tire size

Size geometry

A 225/42R25 tire has a 225mm section width and a 42% aspect ratio, mounted on a 25-inch rim. Sidewall height works out to 94.5mm (3.72") and overall outside diameter is 824.0mm (32.44"). At highway speed the tire completes about 386 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 225/42R25 is unavailable, the closest same-diameter substitutes on the same rim are 215/44R25 and 235/40R25. 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 225/42R25 you can upsize to 235/35R26 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 215/50R24 (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 225/42R25 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 225/42R25

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