Cigars come in many shapes and sizes. The two common measures used for a cigar are its length and ring gauge, with a third factor being the shape and construction of the tip.
Churchill: 6 ¾ to 7 ¾ inches in length, generally with a ring size of 46-52. Named for Winston Churchill who preferred this size of cigar, Churchills require patience because if smoked too quickly the cigar will overheat and become harsh. Take your time and thoroughly enjoy a long quality smooth smoke. Due to their length, Churchills tend to smoke very smooth and cool as compared to many other sizes.
Robusto: 4 ½ to 5 ½ inches in length with a general ring size of 48-54. This is a great cigar for the modern pace of life, this is not the type of cigar that you have to sit down for three hours to smoke, although you could. Because of their shorter and wider size, Robustos tend to smoke a little stronger and provide more of a kick than a Churchill.
Grand Robusto: Similar to a Robusto but thicker, often as wide as a 60 ring gauge.
Toro: Similar to a Robusto but longer, often with a length of 5 ⅝ to 6 ⅝ inches.
Torpedo: Generally around 6 ⅛ inches in length with a ring size of around 52. The tapered head is purposefully designed to reinforce the power of these cigars while a wider cigar to be smoked with a smaller mouth that many find more comfortable.
Panatela: 5 to 7 ½ inches in length with a ring size of 34-38. These type of cigars are long, thin, elegant and always a classy choice for the cigar aficionado. Panatelas tend to smoke hot and strong due to their thin ring gauge.
Cigar Sizing Chart