175/80R13 vs 195/60R15

195/60R15 is 0.19 in (4.8 mm) taller than 175/80R13, a +0.79% diameter difference. With the speedometer set for 175/80R13, an indicated 60 mph is 60.5 mph on 195/60R15.

Is this a safe swap?

Diameter difference +0.79%: under 1%

By overall diameter alone, 195/60R15 is a near match for 175/80R13; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

Side profile and tread width, drawn to the same scale.

175/80R13 vs 195/60R15 differences
Measurement	175/80R13	195/60R15	Difference	% diff
Overall diameter	24.02 in (610.2 mm)	24.21 in (615.0 mm)	+0.19 in (+4.8 mm)	+0.79%
Sidewall height	5.51 in (140.0 mm)	4.61 in (117.0 mm)	−0.91 in (−23.0 mm)	−16.43%
Section width	6.89 in (175.0 mm)	7.68 in (195.0 mm)	+0.79 in (+20.0 mm)	+11.43%
Circumference	75.47 in (1,917.0 mm)	76.07 in (1,932.1 mm)	+0.59 in (+15.1 mm)	+0.79%
Revolutions per mile	840	833	−7	−0.78%

True speed with the speedometer calibrated for 175/80R13
Indicated	Actual on 175/80R13	Actual on 195/60R15	Difference
30 mph	30.0 mph	30.2 mph	+0.2 mph
60 mph	60.0 mph	60.5 mph	+0.5 mph
75 mph	75.0 mph	75.6 mph	+0.6 mph

Ride-height change: 195/60R15 raises the vehicle by 0.09 in (2.4 mm) at the axle (half the +4.8 mm diameter difference).

195/60R15 is 0.19 in taller than 175/80R13 and 20 mm wider, a 0.79% difference in overall diameter.

With the speedometer calibrated for 175/80R13, an indicated 60 mph is actually 60.5 mph on 195/60R15, and revolutions per mile change from 840 to 833.

195/60R15 mounts on a 15-inch wheel, a plus-2 fitment from the 13-inch wheel of 175/80R13.

Size pages

Other comparisons with 175/80R13

Other comparisons with 195/60R15

Source: Calculated from standard tire geometry formulas. Verified 2026-09-27. How these numbers are calculated.