It’s useful to know how long you want a necklace to be, as well for (online) buyers as for necklace makers ;-)
Conversion inches to centimeters:
14 in is equivalent to about 36 cm
16 in is equivalent to about 41 cm
18 in is equivalent to about 46 cm
20 in is equivalent to about 51 cm
24 in is equivalent to about 61 cm
30 in is equivalent to about 76 cm
33 in is equivalent to about 84 cm
Links:
Necklace Lengths (Chains a la carte)
via: necklace lengths – good to know for when you’re ordering online and can’t try it on