TireSizesFinder

175/70R13 vs 175/65R14

175/65R14 is 0.31 in (7.9 mm) taller than 175/70R13, a +1.37% diameter difference. With the speedometer set for 175/70R13, an indicated 60 mph is 60.8 mph on 175/65R14.

Is this a safe swap?

Diameter difference +1.37%: within the ±3% guideline

By overall diameter alone, 175/65R14 falls inside the ±3% range commonly used as a guideline when replacing 175/70R13. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 175/70R13 (22.65 in) vs 175/65R14 (22.96 in)175/70R1322.65 in × 6.89 in175/65R1422.96 in × 6.89 in
Side profile and tread width, drawn to the same scale.
175/70R13 vs 175/65R14 differences
Measurement175/70R13175/65R14Difference% diff
Overall diameter22.65 in (575.2 mm)22.96 in (583.1 mm)+0.31 in (+7.9 mm)+1.37%
Sidewall height4.82 in (122.5 mm)4.48 in (113.8 mm)−0.34 in (−8.7 mm)−7.14%
Section width6.89 in (175.0 mm)6.89 in (175.0 mm)0.00 in (0.0 mm)0.00%
Circumference71.14 in (1,807.0 mm)72.12 in (1,831.9 mm)+0.98 in (+24.8 mm)+1.37%
Revolutions per mile891879−12−1.35%
True speed with the speedometer calibrated for 175/70R13
IndicatedActual on 175/70R13Actual on 175/65R14Difference
30 mph30.0 mph30.4 mph+0.4 mph
60 mph60.0 mph60.8 mph+0.8 mph
75 mph75.0 mph76.0 mph+1.0 mph

Ride-height change: 175/65R14 raises the vehicle by 0.16 in (3.9 mm) at the axle (half the +7.9 mm diameter difference).

175/65R14 is 0.31 in taller than 175/70R13 and the same width, a 1.37% difference in overall diameter.

With the speedometer calibrated for 175/70R13, an indicated 60 mph is actually 60.8 mph on 175/65R14, and revolutions per mile change from 891 to 879.

175/65R14 mounts on a 14-inch wheel, a plus-1 fitment from the 13-inch wheel of 175/70R13.

Size pages

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