International Ring Size Conversion

At Revolution, we proudly serve customers from around the world. Since ring sizing standards vary by country, use this chart to find your correct size. We also offer ring sizers to help you find the most accurate fit before placing your order.

Find my size

Type any size from any country to highlight matching rows

No matching sizes found. Try a different value.

US & Canada	UK & Australian	French & Russian	German	Japanese	Swiss
3	F – F 1/2	44	14	4	4
3.25	F 3/4 – G	45	—	5	5
3.5	G 1/4 – G 1/2	—	14 1/2	6	5.5
3.75	H – H 1/4	46	—	—	6
4	H 1/2 – H 3/4	—	15	7	7
4.25	I – I 1/4	47	—	—	—
4.5	I 1/2 – J	48	—	8	8
4.75	J 1/4	49	15 1/2	—	9
5	J 1/2 – K	—	—	9	—
5.25	K 1/4 – K 1/2	50	—	10	10
5.5	K 3/4 – L	51	16	—	11
5.75	L 1/4 – L 1/2	—	—	11	—
6	L 3/4 – M 1/4	52	16 1/2	12	12
6.25	M 1/2 – M 3/4	53	—	—	13
6.5	N – N 1/4	—	17	13	14
6.75	N 1/2 – N 3/4	54	—	—	—
7	O – O 1/4	—	—	14	—
7.25	O 1/2 – O 3/4	55	17 1/2	—	15
7.5	P – P 1/4	56	—	15	16
7.75	P 1/2 – P 3/4	—	—	—	—
8	Q – Q 1/4	57	18	16	17
8.25	Q 1/2	58	—	—	18
8.5	Q 3/4 – R	—	18 1/2	17	—
8.75	R 1/4 – R 1/2	59	—	—	19
9	R 3/4 – S	—	19	18	—
9.25	S 1/4 – S 1/2	60	—	—	20
9.5	S 3/4 – T	61	19 1/2	19	21
9.75	T 1/4	62	—	—	—
10	T 1/2 – T 3/4	—	20	20	22
10.25	U – U 1/4	63	—	21	23
10.5	U 1/2 – V	—	—	22	—
10.75	V 1/4	64	20 1/2	—	24
11	V 1/2 – W	65	—	23	—
11.25	W 1/4 – W 1/2	66	—	—	25
11.5	W 3/4 – X	—	21	24	26
11.75	X 1/4 – X 1/2	67	—	—	—
12	Y – Y 1/4	—	21 1/2	25	27
12.25	Y 1/2 – Y 3/4	68	—	—	28
12.5	Z – Z 1/4	69	—	26	—
12.75	Z+1/2 – Z+3/4	—	22	—	29
13	Z+1	70	—	27	30
13.25	—	—	—	—	—
13.5	Z+1.5	71	22 1/2	—	31
13.75	Z+2	—	—	—	32
14	Z+3	72	23	—	—
14.25	—	73	—	—	33
14.5	Z+4	—	23 1/2	—	—
14.75	—	74	—	—	34
15	Z+5	75	24	—	35
15.5	Z+6	—	24 1/2	—	36
16	Z+7	—	—	—	37