TireSizesFinder

195/55R16 vs 215/45R17

215/45R17 is 0.17 in (4.4 mm) taller than 195/55R16, a +0.71% diameter difference. With the speedometer set for 195/55R16, an indicated 60 mph is 60.4 mph on 215/45R17.

Is this a safe swap?

Diameter difference +0.71%: under 1%

By overall diameter alone, 215/45R17 is a near match for 195/55R16; 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: 195/55R16 (24.44 in) vs 215/45R17 (24.62 in)195/55R1624.44 in × 7.68 in215/45R1724.62 in × 8.46 in
Side profile and tread width, drawn to the same scale.
195/55R16 vs 215/45R17 differences
Measurement195/55R16215/45R17Difference% diff
Overall diameter24.44 in (620.9 mm)24.62 in (625.3 mm)+0.17 in (+4.4 mm)+0.71%
Sidewall height4.22 in (107.3 mm)3.81 in (96.8 mm)−0.41 in (−10.5 mm)−9.79%
Section width7.68 in (195.0 mm)8.46 in (215.0 mm)+0.79 in (+20.0 mm)+10.26%
Circumference76.80 in (1,950.6 mm)77.34 in (1,964.4 mm)+0.54 in (+13.8 mm)+0.71%
Revolutions per mile825819−6−0.70%
True speed with the speedometer calibrated for 195/55R16
IndicatedActual on 195/55R16Actual on 215/45R17Difference
30 mph30.0 mph30.2 mph+0.2 mph
60 mph60.0 mph60.4 mph+0.4 mph
75 mph75.0 mph75.5 mph+0.5 mph

Ride-height change: 215/45R17 raises the vehicle by 0.09 in (2.2 mm) at the axle (half the +4.4 mm diameter difference).

215/45R17 is 0.17 in taller than 195/55R16 and 20 mm wider, a 0.71% difference in overall diameter.

With the speedometer calibrated for 195/55R16, an indicated 60 mph is actually 60.4 mph on 215/45R17, and revolutions per mile change from 825 to 819.

215/45R17 mounts on a 17-inch wheel, a plus-1 fitment from the 16-inch wheel of 195/55R16.

Size pages

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