Ring Measurements

How to measure your ring size accurately

‘How do I measure ring size?’ This is perhaps the most commonly asked question while shopping for rings online. Hence this page! We want you to be 100% sure that the ring you buy fits perfectly.

The best way of doing this is to get your finger measured by your local jeweler.

Complimentary Ring Sizer

Simply download our complimentary ring sizer by clicking the button below. When printing, ensure that the page scaling is set to "none" on your print dialog box.

Once you have printed the sizer, you will need to cut it out and then use the directions to find your ring size.

Download Ring Sizer (To be used as GUIDE ONLY)

The document is a PDF file. To download a PDF file you will need to have a copy of Adobe Acrobat Reader. If you do not have a copy of this program you can get a free copy from the Adobe website (click here to download a copy of Acrobat Reader).

Below is a chart of ring sizes to help our international customers figure out how sizes match up.

International Ring Size Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
000	0.390	---	---	---	---	---
00	0.422	---	---	---	---	---
0	0.454	---	---	---	---	---
½	0.462	A	---	---	---	---
¾	0.471	A-½	---	---	---	---
1	0.487	B	---	---	1	---
1 1/4	0.495	B-½	---	---	---	---
1 1/2	0.503	C	---	---	---	---
1 3/4	0.511	C-½	---	---	---	---
2	0.520	D	41 1/2	13 1/4	2	1 1/2
2 1/4	0.528	D-½	42 1/8	13 1/2	---	---
2 1/2	0.536	E	42 3/4	13 3/4	3	2 3/4
2 3/4	0.544	E-½	43 3/8	---	---	3 3/8
3	0.553	F	44	14	4	4
3 1/4	0.561	F-½	44 5/8	14 1/4	---	4 5/8
3 1/2	0.569	G	45 1/4	14 1/2	5	5 1/4
3 3/4	0.577	G-½	45 7/8	14 3/4	6	5 7/8
4	0.586	H-½	46 1/2	15	7	6 1/2
4 1/4	0.594	I	47 1/8	15 1/4	---	7 1/8
4 1/2	0.602	I-½	47 3/4	15 1/2	8	7 3/4
4 3/4	0.610	J	48 3/8	---	---	8 3/8
5	0.619	J-½	49	15 3/4	9	9
5 1/4	0.627	K	49 5/8	16	---	9 5/8
5 1/2	0.635	K-½	50 1/4	16 1/4	10	10 1/4
5 3/4	0.643	L	50 7/8	---	11	10 7/8
6	0.652	L-½	51 1/2	16 1/2	12	11 1/2
6 1/4	0.660	M	52 1/8	16 3/4	---	12 1/8
6 1/2	0.668	M-½	52 3/4	17	13	12 3/4
6 3/4	0.676	N	53 3/8	---	---	13 3/8
7	0.685	O	54	17 1/4	14	14
7 1/4	0.693	O-½	54 5/8	17 1/2	---	14 5/8
7 1/2	0.701	P	55 1/4	17 3/4	15	15 1/4
7 3/4	0.709	P-½	55 7/8	---	---	15 7/8
8	0.717	Q	56 1/2	18	16	16 1/2
8 1/4	0.726	Q-½	57 1/8	18 1/4	---	17 1/8
8 1/2	0.734	R	57 3/4	18 1/2	17	17 3/4
8 3/4	0.742	R-½	58 3/8	18 3/4	---	18 3/8
9	0.750	S	59	19	18	19
9 1/4	0.759	S-½	59 5/8	19 1/4	---	19 5/8
9 1/2	0.767	---	60 1/4	19 1/2	19	20 1/4
9 3/4	0.775	T	60 7/8	19 3/4	---	20 7/8
10	0.783	T-½	61 1/2	20	20	21 1/2
10 1/4	0.792	U	62 1/8	20 1/4	21	22 1/8
10 1/2	0.800	U-½	62 3/4	20 1/2	22	22 3/4
10 3/4	0.808	V	63 3/8	---	---	23 3/8
11	0.816	V-½	64	20 3/4	23	24
11 1/4	0.825	W	64 5/8	---	---	24 5/8
11 1/2	0.833	W-½	65 1/4	21	24	25 1/4
11 3/4	0.841	X	65 7/8	---	---	25 7/8
12	0.849	Y	66 1/2	21 1/4	25	26 1/2
12 1/4	0.858	Y-½	67 1/8	21 1/2	---	27 1/8
12 1/2	0.866	Z	67 3/4	21 3/4	26	27 3/4
12 3/4	0.874	Z-½	68 3/8	---	---	28 3/8
13	0.882	---	69	22	27	29

What if I need my ring resized?

In the unlikely event, that your ring doesn’t fit, we can resize it for you. Simply return the ring to us along with your order number and the size you want the ring changed to. There is a charge of $35, which includes the return delivery charge.

Please send all resizing orders to:

Celtic Rings Ltd
8 Na Cluiante
Portarlington
County Offaly
Ireland.

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