TireSizesFinder

225/75R14 vs 215/65R16

215/65R16 is 0.28 in (7.2 mm) shorter than 225/75R14, a −1.04% diameter difference. With the speedometer set for 225/75R14, an indicated 60 mph is 59.4 mph on 215/65R16.

Is this a safe swap?

Diameter difference −1.04%: within the ±3% guideline

By overall diameter alone, 215/65R16 falls inside the ±3% range commonly used as a guideline when replacing 225/75R14. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 225/75R14 (27.29 in) vs 215/65R16 (27.00 in)225/75R1427.29 in × 8.86 in215/65R1627.00 in × 8.46 in
Side profile and tread width, drawn to the same scale.
225/75R14 vs 215/65R16 differences
Measurement225/75R14215/65R16Difference% diff
Overall diameter27.29 in (693.1 mm)27.00 in (685.9 mm)−0.28 in (−7.2 mm)−1.04%
Sidewall height6.64 in (168.8 mm)5.50 in (139.8 mm)−1.14 in (−29.0 mm)−17.19%
Section width8.86 in (225.0 mm)8.46 in (215.0 mm)−0.39 in (−10.0 mm)−4.44%
Circumference85.73 in (2,177.4 mm)84.84 in (2,154.8 mm)−0.89 in (−22.6 mm)−1.04%
Revolutions per mile739747+8+1.05%
True speed with the speedometer calibrated for 225/75R14
IndicatedActual on 225/75R14Actual on 215/65R16Difference
30 mph30.0 mph29.7 mph−0.3 mph
60 mph60.0 mph59.4 mph−0.6 mph
75 mph75.0 mph74.2 mph−0.8 mph

Ride-height change: 215/65R16 lowers the vehicle by 0.14 in (3.6 mm) at the axle (half the −7.2 mm diameter difference).

215/65R16 is 0.28 in shorter than 225/75R14 and 10 mm narrower, a 1.04% difference in overall diameter.

With the speedometer calibrated for 225/75R14, an indicated 60 mph is actually 59.4 mph on 215/65R16, and revolutions per mile change from 739 to 747.

215/65R16 mounts on a 16-inch wheel, a plus-2 fitment from the 14-inch wheel of 225/75R14.

Size pages

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