Decoded notation
275 mm / 60% / R / 18 in
Popular Tire Sizes
275/60R18 Tire Size — Dimensions & Revs
Decode 275/60R18 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width275 mm
Sidewall height165.0 mm
Rim diameter18 in
Overall diameter787.2 mm
Overall diameter30.99 in
Circumference2473.1 mm
Revolutions per mile650.7
Revolutions per km404.4