Decoded notation
265 mm / 50% / R / 18 in
Popular Tire Sizes
265/50R18 Tire Size — Dimensions & Revs
Decode 265/50R18 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width265 mm
Sidewall height132.5 mm
Rim diameter18 in
Overall diameter722.2 mm
Overall diameter28.43 in
Circumference2268.9 mm
Revolutions per mile709.3
Revolutions per km440.8