Ring Size Guide: Find the Perfect Fit Every Time

Buying a ring—whether for yourself or a loved one—should be exciting, not stressful. But the biggest question is always: “What’s the right ring size?” With our simple at-home tips and UK size guide, Chloe’s Jewellers helps you find the perfect fit every time.

1. How to Measure Your Ring Size at Home

You only need a few everyday items:

• A thin strip of paper or string
• A ruler (millimetres preferred)
• A pen or pencil

Wrap the paper around the base of your finger, mark where it overlaps, and measure the length in millimetres. Match it to our ring size chart below.

"Measure at the end of the day when your fingers are warm for the most accurate results."

2. UK Ring Size Chart

Ring sizes in the UK are typically lettered. Here’s a quick guide:

• 48 mm = UK size I
• 50 mm = UK size K
• 52 mm = UK size M
• 54 mm = UK size O
• 56 mm = UK size Q
• 58 mm = UK size S

Need more precision? Download our full printable chart.

UK Size	Diameter (mm)	Approx. US Size	Approx. EU Size
A	12.04	1 3/4	40 1/2
A 1/2	12.24	2	41
B	12.45	2 1/4	41 1/2
B 1/2	12.65	2 1/2	42
C	12.85	2 3/4	42 3/4
C 1/2	13.06	3	43 1/2
D	13.26	3 1/4	44 1/2
D 1/2	13.46	3 1/2	45
E	13.67	3 3/4	45 1/2
E 1/2	13.87	4	46
F	14.07	4 1/4	46 1/2
F 1/2	14.27	4 1/2	47
G	14.48	4 3/4	47 1/2
G 1/2	14.68	5	48
H	14.88	5 1/4	48 1/2
H 1/2	15.09	5 1/2	49
I	15.29	5 3/4	49 1/2
J	15.49	6	50
J 1/2	15.70	6 1/4	50 1/2
K	15.90	6 1/2	51
K 1/2	16.10	6 3/4	51 1/2
L	16.31	7	52
L 1/2	16.51	7 1/4	52 1/2
M	16.72	7 1/2	53
M 1/2	16.92	7 3/4	53 1/2
N	17.12	8	54
N 1/2	17.33	8 1/4	54 1/2
O	17.53	8 1/2	55
O 1/2	17.73	8 3/4	55 1/2
P	17.94	9	56
P 1/2	18.14	9 1/4	56 1/2
Q	18.34	9 1/2	57
Q 1/2	18.54	9 3/4	57 1/2
R	18.75	10	58
R 1/2	18.95	10 1/4	58 1/2
S	19.15	10 1/2	59
S 1/2	19.35	10 3/4	59 1/2
T	19.55	11	60
T 1/2	19.75	11 1/4	60 1/2
U	19.96	11 1/2	61
U 1/2	20.16	11 3/4	61 1/2
V	20.36	12	62
V 1/2	20.56	12 1/4	62 1/2
W	20.76	12 1/2	63
W 1/2	20.96	12 3/4	63 1/2
X	21.16	13	64
X 1/2	21.36	13 1/4	64 1/2
Y	21.56	13 1/2	65
Z	21.76	13 3/4	65 1/2
Z 1/2	21.96	14	66

3. Tips for Gifting Rings

Planning a surprise proposal or gift? Here are smart ways to find their size without asking:

• Borrow a ring they already wear on the correct finger
• Ask a close friend or family member
• Choose a resizable ring setting (Chloe’s can help!)

4. What if the Size Isn’t Perfect?

No worries! We offer complimentary resizing on select engagement and wedding rings. Just reach out to our team after purchase.

Chloe’s Jewellers Makes It Easy

We’re here to help make every ring feel custom-made. Need advice? Contact us or explore our Engagement Ring Collection with confidence—we ship worldwide.