Decoded notation
285 mm / 60% / R / 18 in
Popular Tire Sizes
285/60R18 Tire Size — Dimensions & Revs
Decode 285/60R18 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width285 mm
Sidewall height171.0 mm
Rim diameter18 in
Overall diameter799.2 mm
Overall diameter31.46 in
Circumference2510.8 mm
Revolutions per mile641.0
Revolutions per km398.3