Ring Size Chart

Number Sizes	Inside	Inside	Inside	Inside
US/Canada	Diameter	Circumference	Diameter	Circumference
Standard	(inches)	(inches)	(mm)	(mm)
0	0.458	1.438	11.6	36.5
1/4	0.466	1.463	11.8	37.2
1/2	0.474	1.488	12.0	37.8
3/4	0.482	1.513	12.2	38.4
1	0.490	1.539	12.4	39.1
1 1/4	0.498	1.564	12.6	39.7
1 1/2	0.506	1.589	12.9	40.4
1 3/4	0.514	1.614	13.1	41.0
2	0.522	1.639	13.3	41.6
2 1/4	0.530	1.664	13.5	42.3
2 1/2	0.538	1.689	13.7	42.9
2 3/4	0.546	1.714	13.9	43.5
3	0.554	1.740	14.1	44.2
3 1/4	0.562	1.765	14.3	44.8
3 1/2	0.570	1.790	14.5	45.5
3 3/4	0.578	1.815	14.7	46.1
4	0.586	1.840	14.9	46.7
4 1/4	0.594	1.865	15.1	47.4
4 1/2	0.602	1.890	15.3	48.0
4 3/4	0.610	1.915	15.5	48.7
5	0.618	1.941	15.7	49.3
5 1/4	0.626	1.966	15.9	49.9
5 1/2	0.634	1.991	16.1	50.6
5 3/4	0.642	2.016	16.3	51.2
6	0.650	2.041	16.5	51.8
6 1/4	0.658	2.066	16.7	52.5
6 1/2	0.666	2.091	16.9	53.1
6 3/4	0.674	2.116	17.1	53.8
7	0.682	2.141	17.3	54.4
7 1/4	0.690	2.167	17.5	55.0
7 1/2	0.698	2.192	17.7	55.7
7 3/4	0.706	2.217	17.9	56.3
8	0.714	2.242	18.1	56.9
8 1/4	0.722	2.267	18.3	57.6
8 1/2	0.730	2.292	18.5	58.2
8 3/4	0.738	2.317	18.7	58.9
9	0.746	2.342	18.9	59.5
9 1/4	0.754	2.368	19.2	60.1
9 1/2	0.762	2.393	19.4	60.8
9 3/4	0.770	2.418	19.6	61.4
10	0.778	2.443	19.8	62.1
10 1/4	0.786	2.468	20.0	62.7
10 1/2	0.794	2.493	20.2	63.3
10 3/4	0.802	2.518	20.4	64.0
11	0.810	2.543	20.6	64.6
11 1/4	0.818	2.569	20.8	65.2
11 1/2	0.826	2.594	21.0	65.9
11 3/4	0.834	2.619	21.2	66.5
12	0.842	2.644	21.4	67.2
12 1/4	0.850	2.669	21.6	67.8
12 1/2	0.858	2.694	21.8	68.4
12 3/4	0.866	2.719	22.0	69.1
13	0.874	2.744	22.2	69.7
13 1/4	0.882	2.769	22.4	70.3
13 1/2	0.890	2.795	22.6	71.0
13 3/4	0.898	2.820	22.8	71.6
14	0.906	2.845	23.0	72.3
14 1/4	0.914	2.870	23.2	72.9
14 1/2	0.922	2.895	23.4	73.5
14 3/4	0.930	2.920	23.6	74.2
15	0.938	2.945	23.8	74.8
15 1/4	0.946	2.970	24.0	75.4
15 1/2	0.954	2.996	24.2	76.1
15 3/4	0.962	3.021	24.4	76.7
16	0.970	3.046	24.6	77.4