265/75R16 vs 285/75R16

285/75R16 is 1.2" taller than 265/75R16 (3.7%)

Diameter difference+3.73%diameter 31.65" → 32.83"
265/75R16285/75R16
265/75R16285/75R16Difference
Overall diameter31.65"32.83"+1.18"
Section width10.43"11.22"+0.79"
Sidewall height7.82"8.42"+0.59"
Circumference99.4"103.1"+3.7"
Revolutions per mile637614−23
Wheel diameter16"16"±0"

Speedometer

ShowsActualDiff
30 mph31.1 mph+1.1
45 mph46.7 mph+1.7
60 mph62.2 mph+2.2
70 mph72.6 mph+2.6
80 mph83.0 mph+3.0

Gear ratio to match

CurrentEquivalent
3.423.55
3.553.68
3.733.87
4.104.25

285/75R16 is 1.18" taller than 265/75R16, a +3.73% change in diameter. That is more than the 3% many tire shops use as a limit, so plan on recalibrating the speedometer and checking ABS and stability control.

Ground clearance changes by 0.59" (half the diameter change), and the tire needs 0.59" more room above it.

285/75R16 is 0.79" wider. On the same wheel offset about half of that, 0.39", moves toward the suspension and half toward the fender.

Both fit a 16" wheel; the sidewall is 0.59" taller on 285/75R16.

Details: 265/75R16 in inches · 285/75R16 in inches · change sizes in the calculator

FAQ

What is the difference between 265/75R16 and 285/75R16?

285/75R16 is 1.18" taller (+3.73%) and 0.79" wider than 265/75R16.

Will 285/75R16 change my speedometer?

Yes, by +3.73%. When the speedometer shows 60 mph you would be going 62.2 mph.

Can I replace 265/75R16 with 285/75R16?

It is a +3.7% diameter change, larger than the common 3% guideline, so check clearance and plan to recalibrate.