Decoded notation
235 mm / 50% / R / 18 in
Popular Tire Sizes
235/50R18 Tire Size — Dimensions & Revs
Decode 235/50R18 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width235 mm
Sidewall height117.5 mm
Rim diameter18 in
Overall diameter692.2 mm
Overall diameter27.25 in
Circumference2174.6 mm
Revolutions per mile740.1
Revolutions per km459.9