The International Size Reference Guide

US Ring Size Chart (USA/Canada)

About US Ring Size

Different jewelry rings size systems are used around the world. The ring size system found in the ring size chart on this page is used in the following countries:

United States (USA), Canada and Mexico

Other ring sizing systems:
Convert ring size? See our International Ring Size Conversion Chart. Determine ring size with other sizing systems? See our other ring size charts: Japan/China/South America, India, Italy/Spain/Netherlands/Swiss, Germany (Russia) and France/Scandinavia (EU)

How to Use Ring Size Chart?

You can use the US ring size chart below in two different ways, both for determining your ring size based on finger measurement (easily measured at home, see below), or finding the ring size of a already perfect fitting ring (so that you can buy the same size again). Smart, huh?

Determine ring size based on finger measurent: Use a flexible measuring tape (inches) to measure the circumference around your ring finger (exactly where the ring is supposed to be located). Do not tighten the measuring tape too much, it is supposed to sit quite loose around your finger. Look up your measurement in the ring size chart below. Find your measurement in the column "Circumference" and then find the corresponding ring size ("Ring size" column).

Find ring size based on ring measurement: Use a ruler or measuring tape (inches) to carefully measure the inside diameter of a ring (edge to edge). Make sure to measure where the diameter is largest (center). Look up your measurement in the ring size chart below ("Diameter" column). Find the corresponding ring size ("Ring size" column) - and you are ready to go shopping for rings!

See also our useful Ring Size Tips & Tricks (we are sure you will get some food for thought!)

Ring Size Chart - US Ring Size

Ring Size, US	Circumference Inside Ring, Inches	Diameter Inside Ring, Inches
.
000(0)	1.22	0.39
00	1.39	0.44
0	1.44	0.46
1/4	1.46	0.47
1/2	1.49	0.475
3/4	1.51	0.48
1	1.53	0.49
1 1/4	1.56	0.50
1 1/2	1.59	0.51
1 3/4	1.61	0.515
2	1.64	0.52
2 1/4	1.67	0.53
2 1/2	1.69	0.54
2 3/4	1.72	0.55
3	1.74	0.555
3 1/4	1.77	0.56
3 1/2	1.79	0.57
3 3/4	1.82	0.58
4	1.84	0.59
4 1/4	1.87	0.595
4 1/2	1.89	0.60
4 3/4	1.92	0.61
5	1.94	0.62
5 1/4	1.97	0.63
5 1/2	1.99	0.635
5 3/4	2.02	0.64
6	2.04	0.65
6 1/4	2.07	0.66
6 1/2	2.09	0.67
6 3/4	2.12	0.675
7	2.14	0.68
7 1/4	2.17	0.69
7 1/2	2.19	0.70
7 3/4	2.22	0.71
8	2.24	0.715
8 1/4	2.27	0.72
8 1/2	2.29	0.73
8 3/4	2.32	0.74
9	2.34	0.75
9 1/4	2.37	0.755
9 1/2	2.39	0.76
9 3/4	2.42	0.77
10	2.44	0.78
10 1/4	2.47	0.79
10 1/2	2.49	0.795
10 3/4	2.52	0.80
11	2.54	0.81
11 1/4	2.57	0.82
11 1/2	2.59	0.83
11 3/4	2.62	0.835
12	2.65	0.84
12 1/4	2.67	0.85
12 1/2	2.70	0.86
12 3/4	2.72	0.87
13	2.75	0.875
13 1/4	2.77	0.88
13 1/2	2.80	0.89
13 3/4	2.82	0.90
14	2.85	0.91
14 1/4	2.87	0.915
14 1/2	2.90	0.92
14 3/4	2.92	0.93
15	2.95	0.94
15 1/4	2.97	0.95
15 1/2	3.00	0.955
15 3/4	3.02	0.96
16	3.05	0.97

Tips, Tricks or Questions?

Do you have tips, tricks or questions about ring sizing? Let us hear! Thanks :)