How To Choose Violin Sizes
You should know about what the size of violin. Violins are available in 8 different sizes: 4/4 (also called full size), 3/4, 1/2, 1/4, 1/8, 1/10, 1/16 and 1/32. Size 4/4 is the biggest and size 1/32 is the smallest.
To select what size violin best suits you. You need to know the length between your neck and the middle of your left-hand palm. The violin size determined by the neck/mid-palm approach would be the biggest size students should use.