Locate your wrist bone to measure around. Search for the bony bump where your wrist bone protrudes out. You have to measure the circumference of your wrist over this bump to get your standard wrist measurement in either inches or centimeters.
Measure your wrist circumference accurately. No matter if you’re using a fabric measuring tape, a retractable tape measure, a string , or a paper make sure it wraps snugly around your wrist and over the bump of your wrist bone. Make a mark on the spot where it meets and measure the distance with your ruler. Apply the following chart to determine your ring size.