Step 1. Grab a ring that fits you well.
Step 2. Grab a ruler or tape measure. Take a look at the chart below to see which of our four sizes below is the closest to the diameter of your ring (measuring straight across through the middle.) Voila.
Step 2.5. Don’t have a ring to measure? Don’t stress. Just find a piece of string, wrap it around your finger of choice, make a mark, straighten out and measure against a ruler or tape measure. Then take a look at the chart below to see which size is closest to the circumference of your finger. INSIDER TIP: Fingers get bigger through the day. Who knew? So it’s best to measure in the afternoon or evening for the most comfy fit.