TireSizesFinder

32x11.50R15 vs 265/75R16

265/75R16 is 0.35 in (8.9 mm) shorter than 32x11.50R15, a −1.09% diameter difference. With the speedometer set for 32x11.50R15, an indicated 60 mph is 59.3 mph on 265/75R16.

Is this a safe swap?

Diameter difference −1.09%: within the ±3% guideline

By overall diameter alone, 265/75R16 falls inside the ±3% range commonly used as a guideline when replacing 32x11.50R15. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 32x11.50R15 (32.00 in) vs 265/75R16 (31.65 in)32x11.50R1532.00 in × 11.50 in265/75R1631.65 in × 10.43 in
Side profile and tread width, drawn to the same scale.
32x11.50R15 vs 265/75R16 differences
Measurement32x11.50R15265/75R16Difference% diff
Overall diameter32.00 in (812.8 mm)31.65 in (803.9 mm)−0.35 in (−8.9 mm)−1.09%
Sidewall height8.50 in (215.9 mm)7.82 in (198.8 mm)−0.68 in (−17.2 mm)−7.94%
Section width11.50 in (292.1 mm)10.43 in (265.0 mm)−1.07 in (−27.1 mm)−9.28%
Circumference100.53 in (2,553.5 mm)99.43 in (2,525.5 mm)−1.10 in (−28.0 mm)−1.09%
Revolutions per mile630637+7+1.11%
True speed with the speedometer calibrated for 32x11.50R15
IndicatedActual on 32x11.50R15Actual on 265/75R16Difference
30 mph30.0 mph29.7 mph−0.3 mph
60 mph60.0 mph59.3 mph−0.7 mph
75 mph75.0 mph74.2 mph−0.8 mph

Ride-height change: 265/75R16 lowers the vehicle by 0.18 in (4.4 mm) at the axle (half the −8.9 mm diameter difference).

265/75R16 is 0.35 in shorter than 32x11.50R15 and 27 mm narrower, a 1.09% difference in overall diameter.

With the speedometer calibrated for 32x11.50R15, an indicated 60 mph is actually 59.3 mph on 265/75R16, and revolutions per mile change from 630 to 637.

265/75R16 mounts on a 16-inch wheel, a plus-1 fitment from the 15-inch wheel of 32x11.50R15.

Size pages

Other comparisons with 32x11.50R15

Other comparisons with 265/75R16

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