US Size	Diameter (mm)	Circumference (mm)	UK Size
5	15.7	49.3	J 1/2
6	16.5	51.9	L 1/2
7	17.3	54.4	N 1/2

Wrist size (CM)	Inches
13-13.9	5.1-5.4
14-14.9	5.5-5.8
15-15.9	5.9-6.2
16-16.9	6.3-6.6
17-17.9	6.7-7.0
18-18.9	7.1-7.4
19-19.9	7.5-7.8
20-20.9	7.9-8.2

Necklace size (CM)	Inches
35	13.8
40	15.7
45	17.7
50	19.7
55	21.7
60	23.6

Earring Type	Diameter (mm)	Drop Length (cm)
Stud	4-6	-
Hoop (Small)	10-20	-
Hoop (Large)	25-50	-
Drop/Dangle	-	3-6
Shoulder Duster	-	7+