TireSizesFinder

195/55R15 vs 195/50R16

195/50R16 is 0.23 in (5.9 mm) taller than 195/55R15, a +0.99% diameter difference. With the speedometer set for 195/55R15, an indicated 60 mph is 60.6 mph on 195/50R16.

Is this a safe swap?

Diameter difference +0.99%: under 1%

By overall diameter alone, 195/50R16 is a near match for 195/55R15; 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: 195/55R15 (23.44 in) vs 195/50R16 (23.68 in)195/55R1523.44 in × 7.68 in195/50R1623.68 in × 7.68 in
Side profile and tread width, drawn to the same scale.
195/55R15 vs 195/50R16 differences
Measurement195/55R15195/50R16Difference% diff
Overall diameter23.44 in (595.5 mm)23.68 in (601.4 mm)+0.23 in (+5.9 mm)+0.99%
Sidewall height4.22 in (107.3 mm)3.84 in (97.5 mm)−0.38 in (−9.7 mm)−9.09%
Section width7.68 in (195.0 mm)7.68 in (195.0 mm)0.00 in (0.0 mm)0.00%
Circumference73.65 in (1,870.8 mm)74.38 in (1,889.4 mm)+0.73 in (+18.5 mm)+0.99%
Revolutions per mile860852−8−0.98%
True speed with the speedometer calibrated for 195/55R15
IndicatedActual on 195/55R15Actual on 195/50R16Difference
30 mph30.0 mph30.3 mph+0.3 mph
60 mph60.0 mph60.6 mph+0.6 mph
75 mph75.0 mph75.7 mph+0.7 mph

Ride-height change: 195/50R16 raises the vehicle by 0.12 in (2.9 mm) at the axle (half the +5.9 mm diameter difference).

195/50R16 is 0.23 in taller than 195/55R15 and the same width, a 0.99% difference in overall diameter.

With the speedometer calibrated for 195/55R15, an indicated 60 mph is actually 60.6 mph on 195/50R16, and revolutions per mile change from 860 to 852.

195/50R16 mounts on a 16-inch wheel, a plus-1 fitment from the 15-inch wheel of 195/55R15.

Size pages

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