Decoded notation
185 mm / 70% / R / 13 in
Popular Tire Sizes
185/70R13 Tire Size — Dimensions & Revs
Decode 185/70R13 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width185 mm
Sidewall height129.5 mm
Rim diameter13 in
Overall diameter589.2 mm
Overall diameter23.20 in
Circumference1851.0 mm
Revolutions per mile869.4
Revolutions per km540.2