TireSizesFinder

225/70R14 vs 205/65R16

205/65R16 is 0.09 in (2.3 mm) taller than 225/70R14, a +0.34% diameter difference. With the speedometer set for 225/70R14, an indicated 60 mph is 60.2 mph on 205/65R16.

Is this a safe swap?

Diameter difference +0.34%: under 1%

By overall diameter alone, 205/65R16 is a near match for 225/70R14; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 225/70R14 (26.40 in) vs 205/65R16 (26.49 in)225/70R1426.40 in × 8.86 in205/65R1626.49 in × 8.07 in
Side profile and tread width, drawn to the same scale.
225/70R14 vs 205/65R16 differences
Measurement225/70R14205/65R16Difference% diff
Overall diameter26.40 in (670.6 mm)26.49 in (672.9 mm)+0.09 in (+2.3 mm)+0.34%
Sidewall height6.20 in (157.5 mm)5.25 in (133.3 mm)−0.95 in (−24.2 mm)−15.40%
Section width8.86 in (225.0 mm)8.07 in (205.0 mm)−0.79 in (−20.0 mm)−8.89%
Circumference82.94 in (2,106.8 mm)83.23 in (2,114.0 mm)+0.28 in (+7.2 mm)+0.34%
Revolutions per mile764761−3−0.34%
True speed with the speedometer calibrated for 225/70R14
IndicatedActual on 225/70R14Actual on 205/65R16Difference
30 mph30.0 mph30.1 mph+0.1 mph
60 mph60.0 mph60.2 mph+0.2 mph
75 mph75.0 mph75.3 mph+0.3 mph

Ride-height change: 205/65R16 raises the vehicle by 0.05 in (1.2 mm) at the axle (half the +2.3 mm diameter difference).

205/65R16 is 0.09 in taller than 225/70R14 and 20 mm narrower, a 0.34% difference in overall diameter.

With the speedometer calibrated for 225/70R14, an indicated 60 mph is actually 60.2 mph on 205/65R16, and revolutions per mile change from 764 to 761.

205/65R16 mounts on a 16-inch wheel, a plus-2 fitment from the 14-inch wheel of 225/70R14.

Size pages

Other comparisons with 225/70R14

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