TireSizesFinder

235/75R15 vs 215/75R16

215/75R16 is 0.18 in (4.6 mm) shorter than 235/75R15, a −0.63% diameter difference. With the speedometer set for 235/75R15, an indicated 60 mph is 59.6 mph on 215/75R16.

Is this a safe swap?

Diameter difference −0.63%: under 1%

By overall diameter alone, 215/75R16 is a near match for 235/75R15; 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: 235/75R15 (28.88 in) vs 215/75R16 (28.70 in)235/75R1528.88 in × 9.25 in215/75R1628.70 in × 8.46 in
Side profile and tread width, drawn to the same scale.
235/75R15 vs 215/75R16 differences
Measurement235/75R15215/75R16Difference% diff
Overall diameter28.88 in (733.5 mm)28.70 in (728.9 mm)−0.18 in (−4.6 mm)−0.63%
Sidewall height6.94 in (176.3 mm)6.35 in (161.3 mm)−0.59 in (−15.0 mm)−8.51%
Section width9.25 in (235.0 mm)8.46 in (215.0 mm)−0.79 in (−20.0 mm)−8.51%
Circumference90.72 in (2,304.4 mm)90.15 in (2,289.9 mm)−0.57 in (−14.5 mm)−0.63%
Revolutions per mile698703+4+0.63%
True speed with the speedometer calibrated for 235/75R15
IndicatedActual on 235/75R15Actual on 215/75R16Difference
30 mph30.0 mph29.8 mph−0.2 mph
60 mph60.0 mph59.6 mph−0.4 mph
75 mph75.0 mph74.5 mph−0.5 mph

Ride-height change: 215/75R16 lowers the vehicle by 0.09 in (2.3 mm) at the axle (half the −4.6 mm diameter difference).

215/75R16 is 0.18 in shorter than 235/75R15 and 20 mm narrower, a 0.63% difference in overall diameter.

With the speedometer calibrated for 235/75R15, an indicated 60 mph is actually 59.6 mph on 215/75R16, and revolutions per mile change from 698 to 703.

215/75R16 mounts on a 16-inch wheel, a plus-1 fitment from the 15-inch wheel of 235/75R15.

Size pages

Other comparisons with 235/75R15

Other comparisons with 215/75R16

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