275/65R20 vs 295/65R20

295/65R20 is 1.0" taller than 275/65R20 (3.0%)

Diameter difference+3.00%diameter 34.07" → 35.10"
275/65R20295/65R20
275/65R20295/65R20Difference
Overall diameter34.07"35.10"+1.02"
Section width10.83"11.61"+0.79"
Sidewall height7.04"7.55"+0.51"
Circumference107.0"110.3"+3.2"
Revolutions per mile592575−17
Wheel diameter20"20"±0"

Speedometer

ShowsActualDiff
30 mph30.9 mph+0.9
45 mph46.4 mph+1.4
60 mph61.8 mph+1.8
70 mph72.1 mph+2.1
80 mph82.4 mph+2.4

Gear ratio to match

CurrentEquivalent
3.423.52
3.553.66
3.733.84
4.104.22

295/65R20 is 1.02" taller than 275/65R20, a +3.00% 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 0.51" (half the diameter change), and the tire needs 0.51" more room above it.

295/65R20 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 20" wheel; the sidewall is 0.51" taller on 295/65R20.

Details: 275/65R20 in inches · 295/65R20 in inches · change sizes in the calculator

FAQ

What is the difference between 275/65R20 and 295/65R20?

295/65R20 is 1.02" taller (+3.00%) and 0.79" wider than 275/65R20.

Will 295/65R20 change my speedometer?

Yes, by +3.00%. When the speedometer shows 60 mph you would be going 61.8 mph.

Can I replace 275/65R20 with 295/65R20?

It is a +3.0% diameter change, larger than the common 3% guideline, so check clearance and plan to recalibrate.