1）MEASURING A RING AT HAND
Step 1 Find a ring at your disposal with the perfect sizing
Step 2 Measure the internal diameter of the ring (mm)
Step 3 Refer to the chart below to find out your size
2) MEASURE YOUR FINGER
Find a string, thread, ribbon, or a thin strip of paper
Wrap it around your finger and tighten the wrap until you can't anymore
Use a pen to mark the spot where the string or paper overlaps.
Measure the length with a ruler (mm). Use the chart below to find out your ring size.