265/70R16 vs 275/70R16

275/70R16 is 0.6" taller than 265/70R16 (1.8%)

Diameter difference+1.80%diameter 30.61" → 31.16"
265/70R16275/70R16
265/70R16275/70R16Difference
Overall diameter30.61"31.16"+0.55"
Section width10.43"10.83"+0.39"
Sidewall height7.30"7.58"+0.28"
Circumference96.2"97.9"+1.7"
Revolutions per mile659647−12
Wheel diameter16"16"±0"

Speedometer

ShowsActualDiff
30 mph30.5 mph+0.5
45 mph45.8 mph+0.8
60 mph61.1 mph+1.1
70 mph71.3 mph+1.3
80 mph81.4 mph+1.4

Gear ratio to match

CurrentEquivalent
3.423.48
3.553.61
3.733.80
4.104.17

275/70R16 is 0.55" taller than 265/70R16, a +1.80% change in diameter, inside the 3% range most shops treat as a safe swap.

Ground clearance changes by 0.28" (half the diameter change), and the tire needs 0.28" more room above it.

275/70R16 is 0.39" wider. On the same wheel offset about half of that, 0.20", moves toward the suspension and half toward the fender.

Both fit a 16" wheel; the sidewall is 0.28" taller on 275/70R16.

Details: 265/70R16 in inches · 275/70R16 in inches · change sizes in the calculator

FAQ

What is the difference between 265/70R16 and 275/70R16?

275/70R16 is 0.55" taller (+1.80%) and 0.39" wider than 265/70R16.

Will 275/70R16 change my speedometer?

Yes, by +1.80%. When the speedometer shows 60 mph you would be going 61.1 mph.

Can I replace 265/70R16 with 275/70R16?

Often yes: the diameter change of +1.8% is within the common 3% guideline. Check the load index, speed rating and clearance.