275/75R16 vs 265/75R16

275/75R16 is 0.6" taller than 265/75R16 (1.8%)

Diameter difference−1.83%diameter 32.24" → 31.65"
275/75R16265/75R16
275/75R16265/75R16Difference
Overall diameter32.24"31.65"−0.59"
Section width10.83"10.43"−0.39"
Sidewall height8.12"7.82"−0.30"
Circumference101.3"99.4"−1.9"
Revolutions per mile626637+12
Wheel diameter16"16"±0"

Speedometer

ShowsActualDiff
30 mph29.5 mph−0.5
45 mph44.2 mph−0.8
60 mph58.9 mph−1.1
70 mph68.7 mph−1.3
80 mph78.5 mph−1.5

Gear ratio to match

CurrentEquivalent
3.423.36
3.553.48
3.733.66
4.104.02

265/75R16 is 0.59" shorter than 275/75R16, a −1.83% change in diameter, inside the 3% range most shops treat as a safe swap.

Ground clearance changes by 0.30" (half the diameter change), and the tire needs 0.30" less room above it.

275/75R16 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 0.30" shorter on 265/75R16.

Details: 275/75R16 in inches · 265/75R16 in inches · change sizes in the calculator

FAQ

What is the difference between 275/75R16 and 265/75R16?

265/75R16 is 0.59" shorter (−1.83%) and 0.39" narrower than 275/75R16.

Will 265/75R16 change my speedometer?

Yes, by −1.83%. When the speedometer shows 60 mph you would be going 58.9 mph.

Can I replace 275/75R16 with 265/75R16?

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