THE PERFECT FIT
To obtain the most accurate measurement of your finger, measure at room temperature, when your hands are not unusually cold. Your ring should fit comfortably, snug enough not to fall off, but loose enough to slide over your knuckle. Measure your ring size ate least 2 or 3 times for best results.
The ring size is determined by inner diameter, not the circumference. Cut a thin piece of paper and wrap it around your finger, keeping it close to your bottom knuckle. Mark where the paper meets and measure its length with a ruler. Look up your ring size on our international ring size conversion chart below.
Alternatively you can determine your size by measuring the ring inner diameter of an existing ring. Find the matching ring size on our size chart. If your ring falls in between two sizes, order the larger one.
FINNLY'S INTERNATIONAL RING SIZE CONVERSION CHART