TireSizesFinder

205/60R15 vs 225/50R16

225/50R16 is 0.17 in (4.4 mm) taller than 205/60R15, a +0.70% diameter difference. With the speedometer set for 205/60R15, an indicated 60 mph is 60.4 mph on 225/50R16.

Is this a safe swap?

Diameter difference +0.70%: under 1%

By overall diameter alone, 225/50R16 is a near match for 205/60R15; 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: 205/60R15 (24.69 in) vs 225/50R16 (24.86 in)205/60R1524.69 in × 8.07 in225/50R1624.86 in × 8.86 in
Side profile and tread width, drawn to the same scale.
205/60R15 vs 225/50R16 differences
Measurement205/60R15225/50R16Difference% diff
Overall diameter24.69 in (627.0 mm)24.86 in (631.4 mm)+0.17 in (+4.4 mm)+0.70%
Sidewall height4.84 in (123.0 mm)4.43 in (112.5 mm)−0.41 in (−10.5 mm)−8.54%
Section width8.07 in (205.0 mm)8.86 in (225.0 mm)+0.79 in (+20.0 mm)+9.76%
Circumference77.55 in (1,969.8 mm)78.09 in (1,983.6 mm)+0.54 in (+13.8 mm)+0.70%
Revolutions per mile817811−6−0.70%
True speed with the speedometer calibrated for 205/60R15
IndicatedActual on 205/60R15Actual on 225/50R16Difference
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: 225/50R16 raises the vehicle by 0.09 in (2.2 mm) at the axle (half the +4.4 mm diameter difference).

225/50R16 is 0.17 in taller than 205/60R15 and 20 mm wider, a 0.70% difference in overall diameter.

With the speedometer calibrated for 205/60R15, an indicated 60 mph is actually 60.4 mph on 225/50R16, and revolutions per mile change from 817 to 811.

225/50R16 mounts on a 16-inch wheel, a plus-1 fitment from the 15-inch wheel of 205/60R15.

Size pages

Other comparisons with 205/60R15

Other comparisons with 225/50R16

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