Tiffany & Co. ring size guide

Tiffany & Co. uses US sizing for its US market, in half-size steps. If you know your US size, your Tiffany size is the same — and the chart below gives the UK and EU equivalents.

I know my size in Value

Your size is US 7 (UK N½, EU 54).

Fit confidence Exact table match

Measurement confidence 70/100 · Medium Standard chart conversion; final fit still depends on band width and knuckle shape. Confirm with a printable or physical sizer before ordering an expensive ring.

US: 7
UK: N½
EU / ISO: 54
Japan: 14
CH / IT / ES: 14
Ø mm: 17.32
Circ mm: 54.4

Open US 7 size guide

Print Smart rings Wallet Physical sizer Local only; no account.

US	UK	EU	JP	CH	Ø mm	Circ mm
3	F½	44	4	4	14.07	44.2
3.5	G½	45	5	5	14.48	45.5
4	H½	47	7	7	14.88	46.8
4.5	I½	48	8	8	15.29	48.0
5	J½	49	9	9	15.70	49.3
5.5	K½	51	10	11	16.10	50.6
6	L½	52	12	12	16.51	51.9
6.5	M½	53	13	13	16.92	53.1
7	N½	54	14	14	17.32	54.4
7.5	O½	56	15	16	17.73	55.7
8	P½	57	16	17	18.14	57.0
8.5	Q½	58	17	18	18.54	58.3
9	R½	60	18	20	18.95	59.5
9.5	S½	61	19	21	19.35	60.8
10	T½	62	20	22	19.76	62.1
10.5	U½	63	22	23	20.17	63.4
11	V½	65	23	25	20.57	64.6
11.5	W½	66	24	26	20.98	65.9
12	Y	67	25	27	21.39	67.2
12.5	Z	68	26	28	21.79	68.5
13	Z½	70	27	30	22.20	69.7

How Tiffany & Co. sizing works

Tiffany sizes are standard US numbers. Use your measured US size directly; for international Tiffany boutiques, convert to EU (circumference in mm) with the tool above.

Tiffany & Co. ring size chart

Tiffany & Co. (US)	UK	EU	Ø mm
3	F½	44	14.07
3.5	G½	45	14.48
4	H½	47	14.88
4.5	I½	48	15.29
5	J½	49	15.70
5.5	K½	51	16.10
6	L½	52	16.51
6.5	M½	53	16.92
7	N½	54	17.32
7.5	O½	56	17.73
8	P½	57	18.14
8.5	Q½	58	18.54
9	R½	60	18.95
9.5	S½	61	19.35
10	T½	62	19.76
10.5	U½	63	20.17
11	V½	65	20.57
11.5	W½	66	20.98
12	Y	67	21.39
12.5	Z	68	21.79
13	Z½	70	22.20

Frequently asked questions

Does Tiffany use US ring sizes?

Yes, in the US market Tiffany uses standard US numeric sizing in half-size steps. A Tiffany 6 is a US 6 (UK L½, EU 52).

What is a Tiffany size 6 in UK and EU?

A US/Tiffany 6 is UK L½ and EU 52 (16.5 mm diameter, 51.9 mm circumference).

Ringsizely is an independent ring size converter and is not affiliated with, endorsed by, or sponsored by Tiffany & Co.. Brand names are used for identification only. Always confirm with the retailer before ordering a non-resizable ring.