When measuring your wrist, stay as close to your hand as possible, like so (the circumference in the photo is 16.2cm ), Inches are also available.
Do not add additional length to your measurement.
Don't have a measuring tape?
Use a piece of string to measure your wrist,make a mark with a pen at the intersection.And lay the string back out on a ruler to get your measurement in inches or centimeters.
When ordering
Mark your accurate size in the remarks,and whether you prefer your bracelet a little looser.