How to Measure Your Wrist
Cut a String or Paper Strip about 20–25 cm long.
Place it just above your wrist bone. Adjust so it feels comfortable—not too tight, not too loose. Decide if you prefer a snug fit or a looser style.
Use a pen to mark where the ends meet.
Lay the string or paper flat and measure from the end to your mark using a ruler or tape measure.
Please note: if you're shopping for a bangle which is designed to slip on and doesn't feature a hinge to open and close, you'll need to allow a little extra space for your bangle to slip over your hand.
Bangle Size Chart