All necklaces and earrings are one size.
Measurements should only be taken for bangles in centimeters.
Simply measure another bangle that fits you well or measure your palm by following the guidelines on the picture.
Add or minus one centimeter depending on how loose or tight you would like your bangle to be.
General circumfrance sizes in centimeters:
Small: 18 cm, Medium: 21 cm, Large: 24 cm