265/75R16 vs 285/70R16

285/70R16 is 0.1" taller than 265/75R16 (0.2%)

Diameter difference+0.19%diameter 31.65" → 31.71"
265/75R16285/70R16
265/75R16285/70R16Difference
Overall diameter31.65"31.71"+0.06"
Section width10.43"11.22"+0.79"
Sidewall height7.82"7.85"+0.03"
Circumference99.4"99.6"+0.2"
Revolutions per mile637636−1
Wheel diameter16"16"±0"

Speedometer

ShowsActualDiff
30 mph30.1 mph+0.1
45 mph45.1 mph+0.1
60 mph60.1 mph+0.1
70 mph70.1 mph+0.1
80 mph80.1 mph+0.1

Gear ratio to match

CurrentEquivalent
3.423.43
3.553.56
3.733.74
4.104.11

285/70R16 is 0.06" taller than 265/75R16, a +0.19% change in diameter, inside the 3% range most shops treat as a safe swap.

Ground clearance changes by 0.03" (half the diameter change), and the tire needs 0.03" more room above it.

285/70R16 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 0.03" taller on 285/70R16.

Details: 265/75R16 in inches · 285/70R16 in inches · change sizes in the calculator

FAQ

What is the difference between 265/75R16 and 285/70R16?

285/70R16 is 0.06" taller (+0.19%) and 0.79" wider than 265/75R16.

Will 285/70R16 change my speedometer?

Yes, by +0.19%. When the speedometer shows 60 mph you would be going 60.1 mph.

Can I replace 265/75R16 with 285/70R16?

Often yes: the diameter change of +0.2% is within the common 3% guideline. Check the load index, speed rating and clearance.