Domestically the number of cigar shapes and sizes (combined known as a " Vitola ")  is a lot simpler compared with the complex Cuban Size Chart. There are fewer shapes because there generally is an accepted range for each size. Manufacturers don’t always hold true to the sizes and shapes when they name their cigars. Often times a size called a Toro by the manufacturer may actually be a Grand Corona.The table below is neat and simple. There are 21 shapes (vitolas) listed and unlike the Cuban shapes List, it includes a range of length and ring gauge for each size.I have seen some cigars fall outside of the ranges below, but this is a great generalized list.Source: Perelman’s CigarCyclopedia.

Shape	Length	Ring Gauge	Length Range	Ring Range
Giant	9	52	8 & up	50 & up
Double Corona	7 3/4	49	6 3/4 - 7 3/4	49-54
Churchill	7	47	6 3/4 - 7 7/8	46-48
Perfecto	none		all	all
Pyramid	7	36 => 54	all	flared
Torpedo (Belicoso)	6 1/2	52	all	tapered
Toro	6	50	5 5/8 - 6 5/8	48-54
Robusto	5	50	4 1/2 - 5 1/2	48-54
Grand Corona	6 1/2	46	5 5/8 - 6 5/8	45-47
Corona Extra	5 1/2	46	4 1/2 - 5 1/2	45-47+
Giant Corona	7 1/2	44	7 1/2 & up	42-45
Lonsdale	6 1/2	42	6 1/2 - 7 1/2	40-44
Long Corona	6	42	5 7/8 - 6 3/8	40-44
Corona	5 1/2	42	5 1/4 - 5 3/4	40-44
Petit Corona	5	42	4 - 5	40-44
Long Panatela	7 1/2	38	7 & up	35-39
Panatela	6	38	5 1/2 - 6 7/8	35-39
Short Panatela	5	38	4 - 5 3/8	35-39
Slim Panatela	6	34	5 & up	30-34
Small Panatela	5	33	4 - 5	30-34
Cigarillos	4	26	6 & less	29 & less