Ring sizing guide

 Take a piece of string or dental floss (avoid something that stretches)

 Measure your finger by wrapping the string around mark the string at the point of overlapping.

 Measure the string with a ruler or measuring tape.

 Now go to the ring sizer chart and find your ring size

 If you have a bigger knuckle, measure the knuckle as well and choose a size nearer to the knuckle size.