Decoded notation
245 mm / 60% / R / 20 in
Popular Tire Sizes
245/60R20 Tire Size — Dimensions & Revs
Decode 245/60R20 and calculate nominal width, sidewall, overall diameter, circumference and revolutions.
Calculated dimensions are nominal values based on tire-size notation; actual measured dimensions vary.
Width245 mm
Sidewall height147.0 mm
Rim diameter20 in
Overall diameter802.0 mm
Overall diameter31.57 in
Circumference2519.6 mm
Revolutions per mile638.7
Revolutions per km396.9