Sizing Help

Ring Size Guide

We're here to make finding your ideal ring size as simple as possible. Follow one of the methods below to find your perfect fit before ordering.

Important to know: We recommend choosing a ring size that's slightly loose so you can remove with ease. Fingers can change size by up to half a size in a day due to temperature, weather and exercise. Wider rings like 8mm will fit tighter than thinner rings like 4mm — we recommend sizing up by half a size for wider bands.

Use a Ring Sizer

The most accurate method. Simply slide the ring sizer onto your finger and adjust until it fits comfortably. Make sure the size is large enough to slide over your knuckle without being too tight, ensuring a comfortable fit.

Slide the ring sizer onto the finger you want to wear the ring on
Adjust until it fits comfortably — snug but not tight
Make sure it slides over your knuckle with slight resistance
Read the size indicated by the sizer

Measure an Existing Ring

One of the simplest methods — measure a ring you already own and compare to the chart below. This can be slightly less accurate than using a sizer but works well for a quick estimate.

Place an existing well-fitting ring on a flat surface
Measure the inside diameter of the ring using a ruler or tape measure
Compare your measurement (in mm) to the diameter column in the size chart below
If you fall between two sizes, order the larger size

Measure the inner diameter, not the outer edge of the ring. For example: a diameter of 16.5mm = UK Size M / US Size 6.

Visit a Jeweller

Take a visit to a local jeweller and get your finger professionally sized. It's quick, easy, and usually free. If they give you a letter size, use the chart below to find the equivalent US/UK size.

Measure your finger at the end of the day when fingers are at their largest. Cold fingers can be up to a full size smaller than warm fingers.

International Ring Size Chart

We list ring sizes using UK letter sizes. Use this table to convert from US sizes or diameter measurements.

UK Size	US Size	Diameter (mm)	Circumference (mm)
H	4	14.9	46.8
I	4.5	15.3	48.0
J	5	15.7	49.3
K	5.5	16.1	50.6
L	6	16.5	51.8
M	6.5	16.9	53.1
N	7	17.4	54.7
O	7.5	17.8	55.9
P	8	18.2	57.2
Q	8.5	18.6	58.4
R	9	19.0	59.7
S	9.5	19.4	60.9
T	10	19.8	62.2
U	10.5	20.2	63.5
V	11	20.6	64.7
W	11.5	21.0	66.0
X	12	21.4	67.2
Y	12.5	21.8	68.5
Z	13	22.2	69.7
Z+1	13.5	22.6	71.0
Z+2	14	23.0	72.3
Z+3	14.5	23.4	73.5