Section Width855 mm (33.7")
Aspect Ratio42%
Rim Diameter15"
Overall Diameter1099 mm (43.3")
Sidewall Height359 mm
Circumference3453 mm
855/42R15 — Buy Tires

Everything to know about the 855/42R15 tire size

Size geometry

A 855/42R15 tire has a 855mm section width and a 42% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 359.1mm (14.14") and overall outside diameter is 1099.2mm (43.28"). At highway speed the tire completes about 290 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 855/42R15 is unavailable, the closest same-diameter substitutes on the same rim are 845/42R15 and 865/42R15. 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 855/42R15 you can upsize to 865/40R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 845/44R14 (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 855/42R15 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 855/42R15

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