TireSizesFinder

215/75R15 vs 225/60R17

225/60R17 is 0.07 in (1.7 mm) shorter than 215/75R15, a −0.24% diameter difference. With the speedometer set for 215/75R15, an indicated 60 mph is 59.9 mph on 225/60R17.

Is this a safe swap?

Diameter difference −0.24%: under 1%

By overall diameter alone, 225/60R17 is a near match for 215/75R15; 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: 215/75R15 (27.70 in) vs 225/60R17 (27.63 in)215/75R1527.70 in × 8.46 in225/60R1727.63 in × 8.86 in
Side profile and tread width, drawn to the same scale.
215/75R15 vs 225/60R17 differences
Measurement215/75R15225/60R17Difference% diff
Overall diameter27.70 in (703.5 mm)27.63 in (701.8 mm)−0.07 in (−1.7 mm)−0.24%
Sidewall height6.35 in (161.3 mm)5.31 in (135.0 mm)−1.03 in (−26.2 mm)−16.28%
Section width8.46 in (215.0 mm)8.86 in (225.0 mm)+0.39 in (+10.0 mm)+4.65%
Circumference87.01 in (2,210.1 mm)86.80 in (2,204.8 mm)−0.21 in (−5.3 mm)−0.24%
Revolutions per mile728730+2+0.24%
True speed with the speedometer calibrated for 215/75R15
IndicatedActual on 215/75R15Actual on 225/60R17Difference
30 mph30.0 mph29.9 mph−0.1 mph
60 mph60.0 mph59.9 mph−0.1 mph
75 mph75.0 mph74.8 mph−0.2 mph

Ride-height change: 225/60R17 lowers the vehicle by 0.03 in (0.9 mm) at the axle (half the −1.7 mm diameter difference).

225/60R17 is 0.07 in shorter than 215/75R15 and 10 mm wider, a 0.24% difference in overall diameter.

With the speedometer calibrated for 215/75R15, an indicated 60 mph is actually 59.9 mph on 225/60R17, and revolutions per mile change from 728 to 730.

225/60R17 mounts on a 17-inch wheel, a plus-2 fitment from the 15-inch wheel of 215/75R15.

Size pages

Other comparisons with 215/75R15

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