Sizing Chart
Preemie 3.5 in.
Newborn 4.0 in.
3-12 months 4.5 in.
12-24 months 5.0 in.
2-8 years 5.5 - 6.0 in.
Small Adult 6.0 - 7.0 in.
Large Adult 7.5-up in.
To make sure the bracelet fits it is best to measure to the 1/2 in. and get the size you need rather than go by the chart. But the chart is pretty accurate for an average person/baby.