What Necklace Size Do I Need?
Necklace length, like the style, is a matter of personal taste. A necklace is considered a frame of of a woman's features and designates the area to draw attention to. Every wardrobe is different, and having chains in various lengths will ensure you always have one to wear with all your outfits.
Assessing how a necklace will fit can be difficult if you can't try it on before you buy it, especially when you are shopping online. For just a general rule, the most stylish length of necklace chain (lying along your collarbone) would be two sizes, minimum, above your neck measurement. Measure your own neck and choose a chain that is 2 to 4 inches longer. This will of course depend upon what the necklace will hold and where you want it to lay.
Women's Standard Length Necklace Sizes:
16 inches: Choker length
17-19 inches: At the collarbone
20 inches: A few inches below the collarbone
22 inches: At or above the neckline
24 inches: Below the neckline
Men's Standard Length Chain Sizes:
In general, men's chains will need to be longer than women's necklaces:
18 inches: Base of the neck (for smaller neck sizes)
20 inches: to the collarbone (common length for average men)
22 inches: A few inches below the collarbone
24 inches: Just above the sternum