225/55R16 tire size

A 225/55R16 tire is 225 mm wide with a sidewall 55% of its width (123.8 mm), fits a 16-inch rim and has an overall diameter of 654 mm (25.7 in).

DimensionMetricImperial
Section width225 mm8.86 in
Sidewall height123.8 mm4.87 in
Rim diameter406.4 mm16 in
Overall diameter653.9 mm25.74 in
Circumference2,054.3 mm80.88 in
Revolutions487 per km783 per mile

Reading the size 225/55R16

225Width in mm55Aspect ratio (sidewall % of width)RRadial construction16Rim diameter in inches

The load index and speed rating (for example 91V) follow the size on the sidewall. Replacement tires should match or exceed the original load index and speed rating.

Alternative sizes within 3% of 225/55R16

A replacement size should stay within about 3% of the original diameter so the speedometer, ABS and transmission stay accurate. Always check clearance, load index and the vehicle manufacturer's approved sizes.

SizeDiameterDifferenceSpeedo reads 100 → actual
245/35R19654 mm+0.0%100.0Compare
245/40R18653 mm-0.1%99.9Compare
205/60R16652 mm-0.2%99.8Compare
245/45R17652 mm-0.2%99.8Compare
225/50R17657 mm+0.4%100.4Compare
215/45R18651 mm-0.5%99.5Compare
205/55R17657 mm+0.5%100.5Compare
225/45R18660 mm+0.9%100.9

Compare 225/55R16 with any size →

Other 16-inch sizes