Home32 inch tires in metric

32 inch tire in metric

A 32 inch tire in metric depends on the wheel. The metric sizes closest to 32 in are 235/85R16 (31.73 in) on a 16 in wheel, 255/75R17 (32.06 in) on a 17 in wheel, 255/70R18 (32.06 in) on an 18 in wheel, 305/50R20 (32.01 in) on a 20 in wheel and 285/45R22 (32.10 in) on a 22 in wheel.

Sizes are grouped by calculated diameter rounded to the nearest inch, so this page lists every catalogue size from 31.50 in up to just under 32.50 in, plus the flotation sizes whose code says 32.

16 in wheels

SizeDiameter (in)(mm)Width (in)(mm)Revs per mileper km
265/75R1631.65803.910.43265637396
235/85R1631.73805.99.25235636395

Just under the 32-inch class on a 16 in wheel: 265/70R16 at 30.61 in777.4 mm, a 31-inch tire by calculated diameter.

17 in wheels

SizeDiameter (in)(mm)Width (in)(mm)Revs per mileper km
265/70R1731.61802.810.43265638396
235/80R1731.80807.89.25235634394
255/75R1732.06814.310.04255629391
275/70R1732.16816.810.83275627390

Just under the 32-inch class on a 17 in wheel: 245/75R17 at 31.47 in799.3 mm, a 31-inch tire by calculated diameter.

18 in wheels

SizeDiameter (in)(mm)Width (in)(mm)Revs per mileper km
265/65R1831.56801.710.43265639397
255/70R1832.06814.210.04255629391
275/65R1832.07814.710.83275629391
305/60R1832.41823.212.01305622387

Just under the 32-inch class on an 18 in wheel: 285/60R18 at 31.46 in799.2 mm, a 31-inch tire by calculated diameter.

20 in wheels

SizeDiameter (in)(mm)Width (in)(mm)Revs per mileper km
245/60R2031.57802.09.65245639397
275/55R2031.91810.510.83275632393
305/50R2032.01813.012.01305630392
285/55R2032.34821.511.22285624387

Just under the 32-inch class on a 20 in wheel: 255/55R20 at 31.04 in788.5 mm, a 31-inch tire by calculated diameter.

22 in wheels

SizeDiameter (in)(mm)Width (in)(mm)Revs per mileper km
285/45R2232.10815.311.22285628390

These are size-code figures only. Whether a size fits, clears and carries your load depends on your vehicle and the tire, so check with a tire shop.

Searched comparisons with 32-inch sizes

Sources

Data verified 29 October 2026 against these sources. See the methodology for how disagreements are resolved.