How do you measure your ring size?

If you already have a ring that fits well, it's very easy. Use a ruler to measure the inside diameter of the ring (excluding the rim). The measured number of millimeters is your ring size.

Don't you have a fitting ring? Then you can easily measure the circumference of your finger with a piece of string. You can compare the measurements with the numbers in the size chart below, and that way you'll know your ring size.