The most accurate method of finding the proper ring size for your finger would be to visit a local jewelry store and ask for a sizing. They usually offer this service free of charge.
Another method which you can try at home is using a string, a tape measure and the ring size chart listed below.
1. Find a piece of string.
2. Wrap it around the base of your finger.
3. Use a pen to mark the point on the string where it overlaps to form a complete circle.
4. With a ruler, measure the length from the starting end of the string to the pen mark.
5. Use the measurement and the chart below to determine your ring size.
| Ring Size | Circumference (in mm) | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 50 mm | 5 | 53 mm | 6 | 55 mm | 7 | 57 mm | 8 | 60 mm | 9 | 63 mm | 10 | 66 mm | 11 | 68 mm | 12 | 71 mm | 13 | 14 | 76 mm |