Section Width555 mm (21.9")
Aspect Ratio18%
Rim Diameter32"
Overall Diameter1013 mm (39.9")
Sidewall Height100 mm
Circumference3181 mm
555/18R32 — Buy Tires

Everything to know about the 555/18R32 tire size

Size geometry

A 555/18R32 tire has a 555mm section width and a 18% aspect ratio, mounted on a 32-inch rim. Sidewall height works out to 99.9mm (3.93") and overall outside diameter is 1012.6mm (39.87"). At highway speed the tire completes about 314 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 555/18R32 is unavailable, the closest same-diameter substitutes on the same rim are 545/18R32 and 565/18R32. 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 555/18R32 you can upsize to 565/15R33 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 545/21R31 (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 555/18R32 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 555/18R32

tire_size.no_vehicles_found