295/70R17 vs 33x12.50R17

295/70R17 is 0.3" taller than 33x12.50R17 (0.8%)

Diameter difference−0.78%diameter 33.26" → 33.00"
295/70R1733x12.50R17
295/70R1733x12.50R17Difference
Overall diameter33.26"33.00"−0.26"
Section width11.61"12.50"+0.89"
Sidewall height8.13"8.00"−0.13"
Circumference104.5"103.7"−0.8"
Revolutions per mile606611+5
Wheel diameter17"17"±0"

Speedometer

ShowsActualDiff
30 mph29.8 mph−0.2
45 mph44.6 mph−0.4
60 mph59.5 mph−0.5
70 mph69.5 mph−0.5
80 mph79.4 mph−0.6

Gear ratio to match

CurrentEquivalent
3.423.39
3.553.52
3.733.70
4.104.07

33x12.50R17 is 0.26" shorter than 295/70R17, a −0.78% change in diameter, inside the 3% range most shops treat as a safe swap.

Ground clearance changes by 0.13" (half the diameter change), and the tire needs 0.13" less room above it.

33x12.50R17 is 0.89" wider. On the same wheel offset about half of that, 0.44", moves toward the suspension and half toward the fender.

Both fit a 17" wheel; the sidewall is 0.13" shorter on 33x12.50R17.

Details: 295/70R17 in inches · 33x12.50R17 in inches · change sizes in the calculator

FAQ

What is the difference between 295/70R17 and 33x12.50R17?

33x12.50R17 is 0.26" shorter (−0.78%) and 0.89" wider than 295/70R17.

Will 33x12.50R17 change my speedometer?

Yes, by −0.78%. When the speedometer shows 60 mph you would be going 59.5 mph.

Can I replace 295/70R17 with 33x12.50R17?

Often yes: the diameter change of −0.8% is within the common 3% guideline. Check the load index, speed rating and clearance.