33x10.50R15 vs 33x12.50R15

33x12.50R15 is 0.0" taller than 33x10.50R15 (0.0%)

Diameter difference±0.00%diameter 33.00" → 33.00"
33x10.50R1533x12.50R15
33x10.50R1533x12.50R15Difference
Overall diameter33.00"33.00"±0.00"
Section width10.50"12.50"+2.00"
Sidewall height9.00"9.00"±0.00"
Circumference103.7"103.7"±0.0"
Revolutions per mile611611±0
Wheel diameter15"15"±0"

Speedometer

ShowsActualDiff
30 mph30.0 mph±0.0
45 mph45.0 mph±0.0
60 mph60.0 mph±0.0
70 mph70.0 mph±0.0
80 mph80.0 mph±0.0

Gear ratio to match

CurrentEquivalent
3.423.42
3.553.55
3.733.73
4.104.10

33x12.50R15 is 0.00" taller than 33x10.50R15, a ±0.00% change in diameter, inside the 3% range most shops treat as a safe swap.

Ground clearance changes by 0.00" (half the diameter change), and the tire needs 0.00" more room above it.

33x12.50R15 is 2.00" wider. On the same wheel offset about half of that, 1.00", moves toward the suspension and half toward the fender.

Both fit a 15" wheel; the sidewall is 0.00" taller on 33x12.50R15.

Details: 33x10.50R15 in inches · 33x12.50R15 in inches · change sizes in the calculator

FAQ

What is the difference between 33x10.50R15 and 33x12.50R15?

33x12.50R15 is 0.00" taller (±0.00%) and 2.00" wider than 33x10.50R15.

Will 33x12.50R15 change my speedometer?

Yes, by ±0.00%. When the speedometer shows 60 mph you would be going 60.0 mph.

Can I replace 33x10.50R15 with 33x12.50R15?

Often yes: the diameter change of ±0.0% is within the common 3% guideline. Check the load index, speed rating and clearance.