This is a chart that will be extremely helpful for you to determine the ring size that you need. You can either make use of a tape or a small piece of string to measure the area that will be occupied by the ring. When it becomes a complete circle, make a mark on the string. This will be helpful for you to compare with the chart that is mentioned below.
1) *Measure your finger in warm temperatures at the end of the day.
2) *If your knuckle is a lot larger than the base of your finger, measure both the base of your finger and your knuckle and select a size between the two.
3) *When considering a wide band, move up a size from your measurement, for comfort’s sake.