205/45R16 tire size

A 205/45R16 tire is 205 mm wide with a sidewall 45% of its width (92.2 mm), fits a 16-inch rim and has an overall diameter of 591 mm (23.3 in).

DimensionMetricImperial
Section width205 mm8.07 in
Sidewall height92.2 mm3.63 in
Rim diameter406.4 mm16 in
Overall diameter590.9 mm23.26 in
Circumference1,856.4 mm73.09 in
Revolutions539 per km867 per mile

Reading the size 205/45R16

205Width in mm45Aspect 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 205/45R16

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
165/70R14587 mm-0.7%99.3Compare
195/55R15596 mm+0.8%100.8Compare
205/40R17596 mm+0.8%100.8Compare
185/65R14596 mm+0.9%100.9Compare
185/55R15584 mm-1.1%98.9Compare
175/65R14583 mm-1.3%98.7Compare
175/70R14601 mm+1.6%101.6
185/60R15603 mm+2.0%102.0

Compare 205/45R16 with any size →

Other 16-inch sizes