225/40R19 tire size

A 225/40R19 tire is 225 mm wide with a sidewall 40% of its width (90.0 mm), fits a 19-inch rim and has an overall diameter of 663 mm (26.1 in).

DimensionMetricImperial
Section width225 mm8.86 in
Sidewall height90.0 mm3.54 in
Rim diameter482.6 mm19 in
Overall diameter662.6 mm26.09 in
Circumference2,081.6 mm81.95 in
Revolutions480 per km773 per mile

Reading the size 225/40R19

225Width in mm40Aspect ratio (sidewall % of width)RRadial construction19Rim 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 225/40R19

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
255/35R19661 mm-0.2%99.8Compare
215/60R16664 mm+0.3%100.3Compare
225/45R18660 mm-0.4%99.6Compare
205/55R17657 mm-0.8%99.2Compare
215/55R17668 mm+0.9%100.9Compare
225/50R17657 mm-0.9%99.1Compare
235/45R18669 mm+0.9%100.9Compare
235/40R19671 mm+1.2%101.2

Compare 225/40R19 with any size →

Other 19-inch sizes

225/35R19225/55R19235/35R19235/40R19235/45R19235/50R19235/55R19245/35R19245/40R19245/45R19255/35R19255/40R19255/50R19255/55R19