When choosing a necklace, it can be tricky to find one that fits comfortably around your neck. Fortunately, there are some basic tips on necklace lengths. The standard chain length is 16 to 20 inches, which sits just between the base of the throat and the collarbone for most people. And just like style, the correct length for you is based on personal taste. It's also nice to have different sizes and styles of necklaces available for different occasions.

Instructions:
 
Add inches. To find the ideal length for a necklace that will sit just above your collarbone, use a measuring tape to measure your neck and add 2 to 4 inches. This will help ensure a looser, more comfortable fit.

Measure for a choker. If you want a choker, choose the standard size, which is 16 inches. For a more snug fit, measure around your neck and go no more than an inch less, depending on your preference.

Standard sizes for children. For children's necklaces, 14 to 16 inches is standard.

Match jewelry to the occasion. The jewelry should match the occasion or attire. For women, a longer necklace should be worn with a high neck such as a turtleneck shirt. A shorter chain works well with formal attire such as a dinner dress.

Sizing for men. For men, the necklace should sit at the collarbone when it is worn with an open shirt collar. If worn with a pendant or medallion, the chain should be slightly longer. Men's chains generally measure between 18 inches and 20 inches in length for a necklace that will lie at the collarbone.

Perfect pearl necklace sizing. A formal pearl necklace shouldn't be too long or too snug; it should fit above the collarbone or just below the neckline for the best look. On the other hand, long pearl strands are a stylish option for less formal wear.

Go long with beads. While all necklace styles can be worn long, the beaded necklace is one of the most popular types for such a length. Long necklaces are good for petite women as the length creates long vertical lines, giving the illusion of added height.