Decoded notation
225 mm / 55% / R / 15 in
Popular Tire Sizes
225/55R15 Tire Size — Dimensions & Revs
Decode 225/55R15 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width225 mm
Sidewall height123.8 mm
Rim diameter15 in
Overall diameter628.5 mm
Overall diameter24.74 in
Circumference1974.5 mm
Revolutions per mile815.1
Revolutions per km506.5