Mejuri ring size guide

Mejuri uses standard US ring sizing in half steps. Your US size is your Mejuri size; the chart below adds UK, EU and millimetre equivalents.

US sizing system

7 starter value

2026-07-17 source review

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I know my size in Value

Your size is US 7 (UK N½, EU 54).

Fit confidence Exact table match

Fit 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.

17.32 mm Circ mm 54.4 mm

US: 7
UK: N½
EU / ISO: 54
Japan: 14
CH / IT / ES: 14
Inner diameter, millimetres: 17.32
Circ mm: 54.4

Why this size?

Your input maps to US 7 — UK N½, EU 54, JP 14, Ø 17.32 mm.

Inner diameter is exact to about ±0.1 mm. String or on-screen methods add roughly ½–1 size of noise, so confirm with a second method before buying an expensive or non-resizable ring.

Open US 7 size guide

More options

Print Smart rings Brand guides Wallet Screen sizer Between sizes Wide-band fit

Local only; no account.

Ring fit fix advisor

Choose the fit problem and get the safest next step before resizing, replacing or buying another ring.

Too tight or stuck Too loose or spinning Wide band or comfort-fit Non-resizable or brand ring

Converter chart
US	UK	EU	JP	CH	Inner diameter, millimetres	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 Mejuri sizing works

Mejuri rings are sized in US numbers. If you’re between sizes on a stacking or thin band, the smaller size often works; on a wider band, size up.

Fast conversion anchors

These common reference points come from the same table used by the converter.

Fast conversion anchors
Brand size	US	UK	EU
6	6	L½	52
7	7	N½	54
9	9	R½	60

Wide-band size calculator

Estimate the order size for a wider band, then confirm before buying a non-resizable ring.

Normal US size Band width: 6 mm Fit preference Knuckle shape

Mejuri ring size chart

Mejuri ring size chart
Mejuri (US)	UK	EU	Inner diameter, millimetres
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 Mejuri use US ring sizes?

Yes. Mejuri uses US sizing in half steps. A Mejuri 6 is a US 6 (UK L½, EU 52).

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