235/55R17 tire size

A 235/55R17 tire is 235 mm wide with a sidewall 55% of its width (129.2 mm), fits a 17-inch rim and has an overall diameter of 690 mm (27.2 in).

DimensionMetricImperial
Section width235 mm9.25 in
Sidewall height129.2 mm5.09 in
Rim diameter431.8 mm17 in
Overall diameter690.3 mm27.18 in
Circumference2,168.6 mm85.38 in
Revolutions461 per km742 per mile

Reading the size 235/55R17

235Width in mm55Aspect ratio (sidewall % of width)RRadial construction17Rim 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 235/55R17

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
215/60R17690 mm-0.1%99.9Compare
235/60R16688 mm-0.3%99.7Compare
235/50R18692 mm+0.3%100.3Compare
215/55R18694 mm+0.5%100.5Compare
255/40R19687 mm-0.5%99.5Compare
235/45R19694 mm+0.6%100.6Compare
255/35R20686 mm-0.6%99.4Compare
215/65R16686 mm-0.6%99.4

Compare 235/55R17 with any size →

Other 17-inch sizes