Ring size

The easiest method of all is to use a small string, strip of paper or some dental floss. What you need to measure is the circumference of the finger. To do this, wrap the string, floss or paper strip around the base of the finger and make a mark right where the two ends meet (where they overlap).

What you should do now is to unfold the material you used and compare it with a ruler, measuring how many millimeters were necessary to wrap your finger.

The measurement in millimeters will give you your size. To be super precise, you can make a fake ring with a strip of paper and some tape until it feels snug. Neither tight nor loose and then cut the strip to see how much it measures.