TireSizesFinder

265/75R16 vs 285/65R17

285/65R17 is 0.06 in (1.6 mm) shorter than 265/75R16, a −0.20% diameter difference. With the speedometer set for 265/75R16, an indicated 60 mph is 59.9 mph on 285/65R17.

Is this a safe swap?

Diameter difference −0.20%: under 1%

By overall diameter alone, 285/65R17 is a near match for 265/75R16; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 265/75R16 (31.65 in) vs 285/65R17 (31.59 in)265/75R1631.65 in × 10.43 in285/65R1731.59 in × 11.22 in
Side profile and tread width, drawn to the same scale.
265/75R16 vs 285/65R17 differences
Measurement265/75R16285/65R17Difference% diff
Overall diameter31.65 in (803.9 mm)31.59 in (802.3 mm)−0.06 in (−1.6 mm)−0.20%
Sidewall height7.82 in (198.8 mm)7.29 in (185.3 mm)−0.53 in (−13.5 mm)−6.79%
Section width10.43 in (265.0 mm)11.22 in (285.0 mm)+0.79 in (+20.0 mm)+7.55%
Circumference99.43 in (2,525.5 mm)99.23 in (2,520.5 mm)−0.20 in (−5.0 mm)−0.20%
Revolutions per mile637639+1+0.20%
True speed with the speedometer calibrated for 265/75R16
IndicatedActual on 265/75R16Actual on 285/65R17Difference
30 mph30.0 mph29.9 mph−0.1 mph
60 mph60.0 mph59.9 mph−0.1 mph
75 mph75.0 mph74.9 mph−0.1 mph

Ride-height change: 285/65R17 lowers the vehicle by 0.03 in (0.8 mm) at the axle (half the −1.6 mm diameter difference).

285/65R17 is 0.06 in shorter than 265/75R16 and 20 mm wider, a 0.20% difference in overall diameter.

With the speedometer calibrated for 265/75R16, an indicated 60 mph is actually 59.9 mph on 285/65R17, and revolutions per mile change from 637 to 639.

285/65R17 mounts on a 17-inch wheel, a plus-1 fitment from the 16-inch wheel of 265/75R16.

Size pages

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Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.