TireSizesFinder

215/75R14 vs 205/75R15

205/75R15 is 0.41 in (10.4 mm) taller than 215/75R14, a +1.53% diameter difference. With the speedometer set for 215/75R14, an indicated 60 mph is 60.9 mph on 205/75R15.

Is this a safe swap?

Diameter difference +1.53%: within the ±3% guideline

By overall diameter alone, 205/75R15 falls inside the ±3% range commonly used as a guideline when replacing 215/75R14. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 215/75R14 (26.70 in) vs 205/75R15 (27.11 in)215/75R1426.70 in × 8.46 in205/75R1527.11 in × 8.07 in
Side profile and tread width, drawn to the same scale.
215/75R14 vs 205/75R15 differences
Measurement215/75R14205/75R15Difference% diff
Overall diameter26.70 in (678.1 mm)27.11 in (688.5 mm)+0.41 in (+10.4 mm)+1.53%
Sidewall height6.35 in (161.3 mm)6.05 in (153.8 mm)−0.30 in (−7.5 mm)−4.65%
Section width8.46 in (215.0 mm)8.07 in (205.0 mm)−0.39 in (−10.0 mm)−4.65%
Circumference83.87 in (2,130.3 mm)85.16 in (2,163.0 mm)+1.29 in (+32.7 mm)+1.53%
Revolutions per mile755744−11−1.51%
True speed with the speedometer calibrated for 215/75R14
IndicatedActual on 215/75R14Actual on 205/75R15Difference
30 mph30.0 mph30.5 mph+0.5 mph
60 mph60.0 mph60.9 mph+0.9 mph
75 mph75.0 mph76.2 mph+1.2 mph

Ride-height change: 205/75R15 raises the vehicle by 0.20 in (5.2 mm) at the axle (half the +10.4 mm diameter difference).

205/75R15 is 0.41 in taller than 215/75R14 and 10 mm narrower, a 1.53% difference in overall diameter.

With the speedometer calibrated for 215/75R14, an indicated 60 mph is actually 60.9 mph on 205/75R15, and revolutions per mile change from 755 to 744.

205/75R15 mounts on a 15-inch wheel, a plus-1 fitment from the 14-inch wheel of 215/75R14.

Size pages

Other comparisons with 215/75R14

Other comparisons with 205/75R15

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