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285/70R17 in inches

A 285/70R17 is 32.71 in (830.8 mm) tall and 11.22 in (285 mm) wide, with a 7.85 in sidewall on a 17 in wheel. By calculated diameter it's a 33-inch tire, 0.29 in short of 33 in.

By David Owen. Published 3 November 2026.

in, mphmm, km/h

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.

Makers' own measured figures for this size run 32.76 to 33.15 in tall and 630 to 634 revolutions per mile (calculated: 617). The calculated figures come from the size code alone; real tires vary by brand and tread design.

Is the 285/70R17 a 33-inch tire?

By calculated diameter, yes: 32.71 in rounds to 33. See every 33-inch tire in metric.

On a 17 in wheel, the nearest catalogue sizes by calculated diameter are 275/70R17 (32.16 in) below and 255/80R17 (33.06 in) above.

Searched comparisons with the 285/70R17

Diameter change is the second size against the first, as each comparison is searched.

Compare the 285/70R17 with any size in the calculator