Size Guide

Ring size conversion chart

Ring sizes are measured by the inner circumference of the band, in millimetres — that measurement is the international standard (ISO 8653) and it means the same thing in every country. Every other column below is simply the local name for that same circle.

Inner circumference US & Canada UK & Australia Japan Europe
46.8 mm 4 H½ 7 47
48.0 mm 4½ I½ 8 48
49.3 mm 5 J½ 9 49
50.6 mm 5½ K½ 10 51
51.9 mm 6 L½ 12 52
53.1 mm 6½ M½ 13 53
54.4 mm 7 N½ 14 54
55.7 mm 7½ O½ 15 56
57.0 mm 8 P½ 16 57
58.3 mm 8½ Q½ 17 58
59.5 mm 9 R½ 18 59
60.8 mm 9½ S½ 19 61
62.1 mm 10 T½ 20 62
How do I find my ring size?

Three easy ways. Wrap a thin strip of paper snugly around the base of your finger, mark where it overlaps, and measure the length in millimetres — that number is your inner circumference, so read it straight off the chart above. Or measure the inside diameter of a ring that already fits and multiply by 3.14. Or visit any local jeweller for a free sizing.

A few things worth knowing: fingers are widest in the late afternoon and in warm weather, so measure then rather than first thing in the morning. Wide bands sit more snugly than thin ones — consider going up if the band is 4 mm or wider. And if you land between two sizes, size up.

Necklace lengths

Every product page lists the exact length. Many of our necklaces are 16 in with a 2 in extender, so they can be worn at either 16 or 18 in.

Length Centimetres Where it sits
14 in 36 cm Choker — snug at the base of the neck
16 in 40 cm At the collarbone — our most popular length
18 in 45 cm Just below the collarbone
20 in 50 cm Upper chest — sits over a crew neckline
22–24 in 55–60 cm Mid-chest — good for layering over the shorter lengths

To layer two necklaces, leave at least 2 in between them so the pendants don't tangle.

How do I find my bracelet size?

Wrap a soft tape measure — or a strip of paper — snugly around your wrist just below the wrist bone. That is your wrist measurement; the chart adds the room needed for a comfortable drape.

Your wrist Bracelet length Fit
13.5–14.5 cm / 5.3–5.7 in 16 cm / 6.3 in Petite
14.5–15.5 cm / 5.7–6.1 in 17 cm / 6.7 in Small
15.5–16.5 cm / 6.1–6.5 in 18 cm / 7.1 in Standard
16.5–17.5 cm / 6.5–6.9 in 19 cm / 7.5 in Large
17.5–18.5 cm / 6.9–7.3 in 20 cm / 7.9 in Extra large

Prefer a looser drape? Go up one length. Tennis bracelets and station bracelets are usually worn snug so they sit flat against the wrist.

What if the size I ordered doesn't fit?

Size exchanges are available within 14 days of delivery. Email support@eobo.store with your order number and the size you need. Please note engraved pieces can't be exchanged, so double-check sizing before personalising.

Do you offer ring resizing?

Not at the moment — instead we offer size exchanges within 14 days, which gets a perfectly fitting ring on your finger faster than a resize would. If you're outside the window, write to us and we'll see what we can do.

I'm buying a gift and don't know their size. Help!

When in doubt: necklaces and earrings are size-free. For rings, a sneaky option is to borrow a ring they already wear and measure the inside diameter against the chart above. And remember — a close guess is good enough, since exchanges are open for 14 days.