Ring Size Guide

ZATILLI · CUSTOMER CARE

Ring Size Guide

A considered guide to finding your perfect fit.

Finding the right ring size is an important part of choosing jewelry you'll love to wear.

Our ZATILLI Ring Size Guide will help you measure your finger and compare international ring sizes with confidence.

How to Measure Your Finger

You can determine your ring size at home using a narrow strip of paper, a piece of string, and a ruler.

Step 1 — Wrap
Gently wrap a narrow strip of paper or string around the base of the finger where you intend to wear your ring.

Step 2 — Mark
Mark the point where the two ends meet. Make sure the strip feels comfortably snug without being too tight.

Step 3 — Measure
Lay the strip flat and measure the length in millimeters. This measurement represents the approximate circumference of your finger.

Step 4 — Find Your Size
Compare your measurement with the international size chart below. If your measurement falls between two sizes, we recommend choosing the larger size.

International Ring Size Chart

Use our international conversion chart to compare European, American, British, and Japanese ring sizes.

Finger
mm 		EU US UK Japan Diameter
mm
47 47 4 H 1/2 7 14.97
48 48 4 1/2 I 1/2 8 15.29
49 49 4 3/4 J 1/2 9 15.61
50 50 5 1/4 K 10 15.92
51 51 5 3/4 L 11 16.24
52 52 6 L 1/2 12 16.56
53 53 6 1/4 M 1/2 13 16.88
54 54 6 3/4 N 1/2 14 17.20
55 55 7 1/4 O 15 17.52
56 56 7 1/2 P 16 17.83
57 57 8 P 1/2 17 18.15
58 58 8 1/4 Q 1/2 18 18.47
59 59 8 3/4 R 19 18.79
60 60 9 S 20 19.11
61 61 9 1/2 S 1/2 21 19.43
62 62 10 T 1/2 22 19.75
63 63 10 1/4 U 1/2 23 20.06
64 64 10 3/4 V 24 20.38
65 65 11 W 25 20.70
66 66 11 1/2 W 1/2 26 21.02
67 67 11 3/4 X 1/2 27 21.34
68 68 12 1/4 Z 28 21.66
69 69 12 1/2 Z 1/2 29 21.97
70 70 13 — 30 22.29

EU ring sizes correspond approximately to finger circumference in millimeters. International size conversions are approximate and may differ slightly between jewelry manufacturers.

Already Have a Ring?

If you already own a ring that fits comfortably, you can use it to determine your size.

Measure the Inside Diameter
Place your ring on a flat surface and use a ruler to measure the inside diameter from one inner edge to the opposite inner edge, excluding the metal band.

Compare Your Measurement
Match the diameter in millimeters with the corresponding size in our chart above.

Tips for the Perfect Fit

Measure at the Right Time
Finger size can fluctuate throughout the day. For a more accurate result, measure when your hands are at a comfortable temperature.

Consider Your Knuckle
Your ring should slide comfortably over the knuckle while sitting securely at the base of your finger.

Between Two Sizes?
If you fall between two sizes, choosing the slightly larger size is generally more comfortable.

Check Each Finger Separately
Ring sizes can vary between fingers and between your left and right hands. Always measure the finger on which you intend to wear the ring.

Need Help Choosing?

We're here to help you find the perfect fit.

If you're unsure which size to select, please contact our customer care team at info@zatilli.com or visit our Contact Us page.

ZATILLI · THOUGHTFULLY SELECTED JEWELRY