TireSizesFinder

225/60R16 vs 215/55R17

215/55R17 is 0.32 in (8.1 mm) shorter than 225/60R16, a −1.20% diameter difference. With the speedometer set for 225/60R16, an indicated 60 mph is 59.3 mph on 215/55R17.

Is this a safe swap?

Diameter difference −1.20%: within the ±3% guideline

By overall diameter alone, 215/55R17 falls inside the ±3% range commonly used as a guideline when replacing 225/60R16. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 225/60R16 (26.63 in) vs 215/55R17 (26.31 in)225/60R1626.63 in × 8.86 in215/55R1726.31 in × 8.46 in
Side profile and tread width, drawn to the same scale.
225/60R16 vs 215/55R17 differences
Measurement225/60R16215/55R17Difference% diff
Overall diameter26.63 in (676.4 mm)26.31 in (668.3 mm)−0.32 in (−8.1 mm)−1.20%
Sidewall height5.31 in (135.0 mm)4.66 in (118.3 mm)−0.66 in (−16.7 mm)−12.41%
Section width8.86 in (225.0 mm)8.46 in (215.0 mm)−0.39 in (−10.0 mm)−4.44%
Circumference83.66 in (2,125.0 mm)82.66 in (2,099.5 mm)−1.00 in (−25.4 mm)−1.20%
Revolutions per mile757767+9+1.21%
True speed with the speedometer calibrated for 225/60R16
IndicatedActual on 225/60R16Actual on 215/55R17Difference
30 mph30.0 mph29.6 mph−0.4 mph
60 mph60.0 mph59.3 mph−0.7 mph
75 mph75.0 mph74.1 mph−0.9 mph

Ride-height change: 215/55R17 lowers the vehicle by 0.16 in (4.1 mm) at the axle (half the −8.1 mm diameter difference).

215/55R17 is 0.32 in shorter than 225/60R16 and 10 mm narrower, a 1.20% difference in overall diameter.

With the speedometer calibrated for 225/60R16, an indicated 60 mph is actually 59.3 mph on 215/55R17, and revolutions per mile change from 757 to 767.

215/55R17 mounts on a 17-inch wheel, a plus-1 fitment from the 16-inch wheel of 225/60R16.

Size pages

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