Violins come in 8 main sizes. The size corresponds to the length of the body of the violin (not including the neck and scroll). The smallest common size is 1/16 (just 9 inches or 23 cm), and the sizes work their way up through 1/10, 1/8, 1/4, 1/2, 3/4, 7/8 and finally 4/4 or full size (about 14 inches or 36 cm).