295/75R16 vs 315/75R16

315/75R16 is 1.2" taller than 295/75R16 (3.5%)

Diameter difference+3.53%diameter 33.42" → 34.60"
295/75R16315/75R16
295/75R16315/75R16Difference
Overall diameter33.42"34.60"+1.18"
Section width11.61"12.40"+0.79"
Sidewall height8.71"9.30"+0.59"
Circumference105.0"108.7"+3.7"
Revolutions per mile603583−21
Wheel diameter16"16"±0"

Speedometer

ShowsActualDiff
30 mph31.1 mph+1.1
45 mph46.6 mph+1.6
60 mph62.1 mph+2.1
70 mph72.5 mph+2.5
80 mph82.8 mph+2.8

Gear ratio to match

CurrentEquivalent
3.423.54
3.553.68
3.733.86
4.104.24

315/75R16 is 1.18" taller than 295/75R16, a +3.53% 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.

315/75R16 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 315/75R16.

Details: 295/75R16 in inches · 315/75R16 in inches · change sizes in the calculator

FAQ

What is the difference between 295/75R16 and 315/75R16?

315/75R16 is 1.18" taller (+3.53%) and 0.79" wider than 295/75R16.

Will 315/75R16 change my speedometer?

Yes, by +3.53%. When the speedometer shows 60 mph you would be going 62.1 mph.

Can I replace 295/75R16 with 315/75R16?

It is a +3.5% diameter change, larger than the common 3% guideline, so check clearance and plan to recalibrate.