155/70R13 vs 165/60R14

165/60R14 is 0.25 in (6.4 mm) taller than 155/70R13, a +1.17% diameter difference. With the speedometer set for 155/70R13, an indicated 60 mph is 60.7 mph on 165/60R14.

Is this a safe swap?

Diameter difference +1.17%: within the ±3% guideline

By overall diameter alone, 165/60R14 falls inside the ±3% range commonly used as a guideline when replacing 155/70R13. 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.

155/70R13 vs 165/60R14 differences
Measurement	155/70R13	165/60R14	Difference	% diff
Overall diameter	21.54 in (547.2 mm)	21.80 in (553.6 mm)	+0.25 in (+6.4 mm)	+1.17%
Sidewall height	4.27 in (108.5 mm)	3.90 in (99.0 mm)	−0.37 in (−9.5 mm)	−8.76%
Section width	6.10 in (155.0 mm)	6.50 in (165.0 mm)	+0.39 in (+10.0 mm)	+6.45%
Circumference	67.68 in (1,719.1 mm)	68.47 in (1,739.2 mm)	+0.79 in (+20.1 mm)	+1.17%
Revolutions per mile	936	925	−11	−1.16%

True speed with the speedometer calibrated for 155/70R13
Indicated	Actual on 155/70R13	Actual on 165/60R14	Difference
30 mph	30.0 mph	30.4 mph	+0.4 mph
60 mph	60.0 mph	60.7 mph	+0.7 mph
75 mph	75.0 mph	75.9 mph	+0.9 mph

Ride-height change: 165/60R14 raises the vehicle by 0.13 in (3.2 mm) at the axle (half the +6.4 mm diameter difference).

165/60R14 is 0.25 in taller than 155/70R13 and 10 mm wider, a 1.17% difference in overall diameter.

With the speedometer calibrated for 155/70R13, an indicated 60 mph is actually 60.7 mph on 165/60R14, and revolutions per mile change from 936 to 925.

165/60R14 mounts on a 14-inch wheel, a plus-1 fitment from the 13-inch wheel of 155/70R13.

Size pages

Other comparisons with 155/70R13

Other comparisons with 165/60R14

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