Ring Size Help

Find your perfect fit. Use our simple guide, chart and tools to measure your ring size with confidence.

1. Measure an existing ring

Place a ring that fits you well on a ruler and measure the inside diameter (mm). Use the chart below to find your size.

2. Measure your finger

Wrap a strip of paper or string around the base of your finger, mark where it overlaps and measure the length (mm). Use the chart below to find your size.

3. Visit a jeweller

For the most accurate result, we recommend visiting a jeweller for a professional ring sizing.

Inside Circumference (MM)	Inside Diameter (MM)	Europe	US and Canada
41	13.1	–	1.75
41.6	13.3	–	2
42.3	13.5	–	2.25
42.9	13.7	–	2.5
43.5	13.9	42.5	2.75
44.2	14.1	44	3
44.8	14.3	45	3.25
45.5	14.5	45.5	3.5
46.1	14.7	46	3.75
46.7	14.9	47	4
47.4	15.1	47.5	4.25
48	15.3	48	4.5
48.7	15.5	48.5	4.75
49.3	15.7	49	5
49.9	15.9	50	5.25
50.6	16.1	50.5	5.5
51.2	16.3	51	5.75
51.8	16.5	52	6
52.5	16.7	52.5	6.25
53.1	16.9	53	6.5
53.8	17.1	53.5	6.75
54.4	17.3	54	7
55	17.5	55	7.25
55.7	17.7	55.5	7.5
56.3	17.9	56	7.75
56.9	18.1	57	8
57.6	18.3	57.5	8.25
58.2	18.5	58	8.5
58.9	18.7	59	8.75
59.5	18.9	59.5	9
60.1	19.2	60	9.25
60.8	19.4	61	9.5
61.4	19.6	61.5	9.75
62.1	19.8	62	10
62.7	20	62.5	10.25
63.3	20.2	63	10.5
64	20.4	64	10.75
64.6	20.6	64.5	11
65.2	20.8	65	11.25
65.9	21	66	11.5
66.5	21.2	66.5	11.75
67.2	21.4	67	12
67.8	21.6	67.5	12.25
68.4	21.8	68	12.75
69.1	22	69	13
–	–	70	13.25
70.3	22.4	70.5	13.5
–	–	71.5	13.75
71.6	22.8	72	14