Kids rings are mostly available in size 1/2 – 4 1/2 (12mm up to 15.3mm). To measure the ring size:
- Take a piece of string (not thread as it tends to extend) and wrap it around the child’s finger. Make sure the string is not too tight or loose.
- Cut the string and measure it with a millimeter ruler. The measurement obtained is the inside diameter of the ring.
Most parents prefer the ring on the middle finger for a tight fit. But, there is no hard and fast rule. You can let your child wear the ring however they prefer it.