195/60R16 vs 265/40R17

265/40R17 is 0.13 in (3.4 mm) taller than 195/60R16, a +0.53% diameter difference. With the speedometer set for 195/60R16, an indicated 60 mph is 60.3 mph on 265/40R17.

Is this a safe swap?

Diameter difference +0.53%: under 1%

By overall diameter alone, 265/40R17 is a near match for 195/60R16; 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.

195/60R16 vs 265/40R17 differences
Measurement	195/60R16	265/40R17	Difference	% diff
Overall diameter	25.21 in (640.4 mm)	25.35 in (643.8 mm)	+0.13 in (+3.4 mm)	+0.53%
Sidewall height	4.61 in (117.0 mm)	4.17 in (106.0 mm)	−0.43 in (−11.0 mm)	−9.40%
Section width	7.68 in (195.0 mm)	10.43 in (265.0 mm)	+2.76 in (+70.0 mm)	+35.90%
Circumference	79.21 in (2,011.9 mm)	79.63 in (2,022.6 mm)	+0.42 in (+10.7 mm)	+0.53%
Revolutions per mile	800	796	−4	−0.53%

True speed with the speedometer calibrated for 195/60R16
Indicated	Actual on 195/60R16	Actual on 265/40R17	Difference
30 mph	30.0 mph	30.2 mph	+0.2 mph
60 mph	60.0 mph	60.3 mph	+0.3 mph
75 mph	75.0 mph	75.4 mph	+0.4 mph

Ride-height change: 265/40R17 raises the vehicle by 0.07 in (1.7 mm) at the axle (half the +3.4 mm diameter difference).

265/40R17 is 0.13 in taller than 195/60R16 and 70 mm wider, a 0.53% difference in overall diameter.

With the speedometer calibrated for 195/60R16, an indicated 60 mph is actually 60.3 mph on 265/40R17, and revolutions per mile change from 800 to 796.

265/40R17 mounts on a 17-inch wheel, a plus-1 fitment from the 16-inch wheel of 195/60R16.

Size pages

Other comparisons with 195/60R16

Other comparisons with 265/40R17

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