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285/75R17 in inches

A 285/75R17 is 33.83 in (859.3 mm) tall and 11.22 in (285 mm) wide, with a 8.42 in sidewall on a 17 in wheel. By calculated diameter it's a 34-inch tire, 0.17 in short of 34 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 33.86 to 34.09 in tall and 608 to 614 revolutions per mile (calculated: 596). The calculated figures come from the size code alone; real tires vary by brand and tread design.

Is the 285/75R17 a 34-inch tire?

By calculated diameter, yes: 33.83 in rounds to 34. See every 34-inch tire in metric.

On a 17 in wheel, the nearest catalogue sizes by calculated diameter are 305/70R17 (33.81 in) below and 315/70R17 (34.36 in) above.

Searched comparisons with the 285/75R17

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

Compare the 285/75R17 with any size in the calculator