TireSizesFinder

185/60R13 vs 165/65R14

165/65R14 is 0.70 in (17.9 mm) taller than 185/60R13, a +3.24% diameter difference. With the speedometer set for 185/60R13, an indicated 60 mph is 61.9 mph on 165/65R14.

Is this a safe swap?

Diameter difference +3.24%: outside the ±3% guideline

By overall diameter alone, 165/65R14 falls outside the ±3% range commonly used as a guideline when replacing 185/60R13; speedometer and ride-height changes are larger. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 185/60R13 (21.74 in) vs 165/65R14 (22.44 in)185/60R1321.74 in × 7.28 in165/65R1422.44 in × 6.50 in
Side profile and tread width, drawn to the same scale.
185/60R13 vs 165/65R14 differences
Measurement185/60R13165/65R14Difference% diff
Overall diameter21.74 in (552.2 mm)22.44 in (570.1 mm)+0.70 in (+17.9 mm)+3.24%
Sidewall height4.37 in (111.0 mm)4.22 in (107.3 mm)−0.15 in (−3.7 mm)−3.38%
Section width7.28 in (185.0 mm)6.50 in (165.0 mm)−0.79 in (−20.0 mm)−10.81%
Circumference68.30 in (1,734.8 mm)70.51 in (1,791.0 mm)+2.21 in (+56.2 mm)+3.24%
Revolutions per mile928899−29−3.14%
True speed with the speedometer calibrated for 185/60R13
IndicatedActual on 185/60R13Actual on 165/65R14Difference
30 mph30.0 mph31.0 mph+1.0 mph
60 mph60.0 mph61.9 mph+1.9 mph
75 mph75.0 mph77.4 mph+2.4 mph

Ride-height change: 165/65R14 raises the vehicle by 0.35 in (8.9 mm) at the axle (half the +17.9 mm diameter difference).

165/65R14 is 0.70 in taller than 185/60R13 and 20 mm narrower, a 3.24% difference in overall diameter.

With the speedometer calibrated for 185/60R13, an indicated 60 mph is actually 61.9 mph on 165/65R14, and revolutions per mile change from 928 to 899.

165/65R14 mounts on a 14-inch wheel, a plus-1 fitment from the 13-inch wheel of 185/60R13.

Size pages

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