Home265/70R17 vs 285/70R17

265/70R17 vs 285/70R17

The 285/70R17 is 32.71 in tall: 1.10 in (3.5%) taller than the 265/70R17 at 31.61 in. At an indicated 60 mph you'd be doing 62.1 mph.The 285/70R17 is 830.8 mm tall: 28.0 mm (3.5%) taller than the 265/70R17 at 802.8 mm. At an indicated 100 km/h you'd be doing 103.5 km/h.

By David Owen. Published 3 November 2026.

in, mphmm, km/h

Each figure is rounded separately, so related figures can differ in the last digit.

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.

What changes

Only the section width changes, from 10.43 in to 11.22 in. The aspect ratio is a percentage of the width, so each sidewall grows with it, by 0.55 in, and the 285/70R17 ends up 1.10 in taller overall.

Makers' own measured diameters run 31.57 to 31.97 in for the 265/70R17 and 32.76 to 33.15 in for the 285/70R17, against the calculated 31.61 in and 32.71 in. Real tires vary by brand and tread design; the figures in the table come from the size code alone.

Speedometer and odometer

A speedometer that read true on the 265/70R17 reads low on the 285/70R17: an indicated 60 mph is a true 62.1 mph.A speedometer that read true on the 265/70R17 reads low on the 285/70R17: an indicated 100 km/h is a true 103.5 km/h.

The odometer records about 9,660 miles for every 10,000 you drive.The odometer records about 9,660 km for every 10,000 you drive.

Ground clearance and size class

Ground clearance at the axle rises by 0.55 in: half the diameter change, unloaded.Ground clearance at the axle rises by 14.0 mm: half the diameter change, unloaded. By calculated diameter the 265/70R17 is a 32-inch tire and the 285/70R17 a 33-inch tire.

See every 32-inch and 33-inch size in metric.

Other comparisons with these sizes

• 265/70R17 vs 275/70R17
• 265/70R17 vs 285/75R17
• 265/70R17 vs 265/75R17
• 255/75R17 vs 265/70R17
• 245/75R17 vs 265/70R17
• 285/70R17 vs 285/75R17
• 285/70R17 vs 315/70R17
• 285/70R17 vs 33x12.50R17

285/70R17 in inches.

Compare other sizes in the calculator