TireSizesFinder

33x12.50R15 vs 33x12.50R17

33x12.50R17 is 0.00 in (0.0 mm) shorter than 33x12.50R15, a 0.00% diameter difference. With the speedometer set for 33x12.50R15, an indicated 60 mph is 60.0 mph on 33x12.50R17.

Is this a safe swap?

Diameter difference 0.00%: under 1%

By overall diameter alone, 33x12.50R17 is a near match for 33x12.50R15; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 33x12.50R15 (33.00 in) vs 33x12.50R17 (33.00 in)33x12.50R1533.00 in × 12.50 in33x12.50R1733.00 in × 12.50 in
Side profile and tread width, drawn to the same scale.
33x12.50R15 vs 33x12.50R17 differences
Measurement33x12.50R1533x12.50R17Difference% diff
Overall diameter33.00 in (838.2 mm)33.00 in (838.2 mm)0.00 in (0.0 mm)0.00%
Sidewall height9.00 in (228.6 mm)8.00 in (203.2 mm)−1.00 in (−25.4 mm)−11.11%
Section width12.50 in (317.5 mm)12.50 in (317.5 mm)0.00 in (0.0 mm)0.00%
Circumference103.67 in (2,633.3 mm)103.67 in (2,633.3 mm)0.00 in (0.0 mm)0.00%
Revolutions per mile61161100.00%
True speed with the speedometer calibrated for 33x12.50R15
IndicatedActual on 33x12.50R15Actual on 33x12.50R17Difference
30 mph30.0 mph30.0 mph0.0 mph
60 mph60.0 mph60.0 mph0.0 mph
75 mph75.0 mph75.0 mph0.0 mph

Ride-height change: 33x12.50R17 does not change the vehicle at the axle (half the 0.0 mm diameter difference).

33x12.50R17 is the same height as 33x12.50R15 and the same width, a 0.00% difference in overall diameter.

With the speedometer calibrated for 33x12.50R15, an indicated 60 mph is actually 60.0 mph on 33x12.50R17, and revolutions per mile change from 611 to 611.

33x12.50R17 mounts on a 17-inch wheel, a plus-2 fitment from the 15-inch wheel of 33x12.50R15.

Size pages

Other comparisons with 33x12.50R15

Other comparisons with 33x12.50R17

Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.