Home285/65R18 vs 295/70R18

285/65R18 vs 295/70R18

The 295/70R18 is 34.26 in tall: 1.67 in (5.1%) taller than the 285/65R18 at 32.59 in. At an indicated 60 mph you'd be doing 63.1 mph.The 295/70R18 is 870.2 mm tall: 42.5 mm (5.1%) taller than the 285/65R18 at 827.7 mm. At an indicated 100 km/h you'd be doing 105.1 km/h.

By David Owen.

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

Width and aspect ratio both change (285/65 to 295/70). The 295/70R18 is 0.39 in wider, and each sidewall is 0.84 in taller, so it ends up 1.67 in taller overall.

Makers' own measured diameters run 32.56 to 32.83 in for the 285/65R18 and 34.29 to 34.57 in for the 295/70R18, against the calculated 32.59 in and 34.26 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 285/65R18 reads low on the 295/70R18: an indicated 60 mph is a true 63.1 mph.A speedometer that read true on the 285/65R18 reads low on the 295/70R18: an indicated 100 km/h is a true 105.1 km/h.

The odometer records about 9,510 miles for every 10,000 you drive.The odometer records about 9,510 km for every 10,000 you drive.

Ground clearance and size class

Ground clearance at the axle rises by 0.84 in: half the diameter change, unloaded.Ground clearance at the axle rises by 21.3 mm: half the diameter change, unloaded. By calculated diameter the 285/65R18 is a 33-inch tire and the 295/70R18 a 34-inch tire.

See every 33-inch and 34-inch size in metric.

Other comparisons with these sizes

• 275/65R18 vs 285/65R18
• 275/70R18 vs 285/65R18

295/70R18 in inches.

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