Section Width225 mm (8.9")
Aspect Ratio66%
Rim Diameter19"
Overall Diameter780 mm (30.7")
Sidewall Height149 mm
Circumference2449 mm
225/66R19 — Buy Tires

Everything to know about the 225/66R19 tire size

Size geometry

A 225/66R19 tire has a 225mm section width and a 66% aspect ratio, mounted on a 19-inch rim. Sidewall height works out to 148.5mm (5.85") and overall outside diameter is 779.6mm (30.69"). At highway speed the tire completes about 408 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 225/66R19 is unavailable, the closest same-diameter substitutes on the same rim are 215/69R19 and 235/63R19. 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 225/66R19 you can upsize to 235/58R20 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 215/75R18 (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 225/66R19 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 225/66R19

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