UNGLAZ | Ring Size Guide

Find Your Size

Two methods, one chart. Choose the approach that suits you, and match your measurement to the table below.

How to Measure

Two approaches. Use whichever is available to you.

Method A

1 Choose a ring that already fits you comfortably.

2 Use a ruler to measure the inner diameter in millimeters.

3 Match the measurement to the size chart below.

Method B

1 Wrap a non-stretchy string around the finger where the ring will sit.

2 Pull snugly but not tight. Mark where the string overlaps.

3 Measure the length in millimeters. This is your circumference.

4 Compare the circumference to the size chart below.

Quick reference. For half-sizes and inch conversions, expand the full chart.

US Size	EU Size	Diameter (mm)	Circumference (mm)
5	J ¼	15.7	49
6	L	16.5	52
7	N	17.3	54
8	P	18.2	56
9	R ¼	19.0	59

Full size chart (US 3–13) ▼

US Size	Circumference (mm)	Circumference (in)	Diameter (mm)	Diameter (in)
3	44.2	1.74	14.1	0.56
3.5	45.5	1.79	14.5	0.57
4	46.8	1.84	14.9	0.59
4.5	48.0	1.89	15.3	0.60
5	49.3	1.94	15.7	0.62
5.5	50.6	1.99	16.1	0.63
6	51.8	2.04	16.5	0.65
6.5	53.1	2.09	16.9	0.66
7	54.4	2.14	17.3	0.68
7.5	55.7	2.19	17.7	0.69
8	56.9	2.24	18.1	0.71
8.5	58.2	2.29	18.5	0.72
9	59.4	2.34	18.9	0.74
9.5	60.7	2.39	19.3	0.76
10	62.0	2.44	19.7	0.78
10.5	63.2	2.49	20.1	0.79
11	64.5	2.54	20.5	0.81
11.5	65.8	2.59	20.9	0.82
12	67.1	2.64	21.3	0.84
12.5	68.3	2.69	21.7	0.85
13	69.6	2.74	22.1	0.87

Measure two or three times to reduce error.

Measure when your hands are at normal temperature — not cold, and not directly after exercise.

If you fall between two sizes, choose the larger one. Comfort over precision.

If you need additional guidance or a different measurement system, our comprehensive guide covers everything in detail.

A ring that fits well disappears on the hand. You feel the design, not the metal. That is the standard.