Step 1
Take a piece of string or a thin strip of paper and wrap it around the base of your finger.

Step 2 
Mark where the string or paper overlaps using a pen or marker.

Step 3 

Unroll the string or paper and measure the distance between the marked points in millimeters.

Step 4

Use the measurement to determine your ring size by referring to a ring size chart. Each size corresponds to a specific measurement.

Step 5 

Consider the width of the ring you want to purchase. Wider rings may require a larger size for a comfortable fit.

If you are between sizes, choose the larger size to ensure a better fit.