Decoded notation
305 mm / 40% / R / 19 in
Popular Tire Sizes
305/40R19 Tire Size — Dimensions & Revs
Decode 305/40R19 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width305 mm
Sidewall height122.0 mm
Rim diameter19 in
Overall diameter726.6 mm
Overall diameter28.61 in
Circumference2282.7 mm
Revolutions per mile705.0
Revolutions per km438.1