Find your ring size.
Three ways to get an accurate size: at home, in person, or with a discreet sizer kit posted to your door. Don't worry about getting it exactly right; every Culét ring includes one free resize for life.
Pick the method that suits you.
Order a sizer kit
We post you a plastic ring sizer, sleek black, fits in a card-sized envelope, with every size from F to Z. Try them on at home, find the right fit, then send us the size. Free with any consultation booking.
Order a kit →Print our paper sizer
Download our printable sizer (PDF, A4). Print at 100% scale, cut out the sizer strip, wrap around your finger. Accurate to within half a size. Works for most rings.
Download PDF →Measure an existing ring
Find a ring she already wears on the same finger. Place it on the chart in our printable sizer, or measure the inner diameter in mm. Match to the size chart below.
See chart →Find your size in any system.
| Inner ⌀ (mm) | AU / UK | US / CA | EU | JP |
|---|---|---|---|---|
| 14.9 | F | 3 | 44 | 4 |
| 15.3 | G | 3½ | 45 | 5 |
| 15.7 | H | 4 | 46 | 7 |
| 16.1 | I | 4½ | 47 | 8 |
| 16.5 | J | 5 | 48 | 9 |
| 16.9 | K | 5½ | 49 | 10 |
| 17.3 | L | 6 | 50 | 11 |
| 17.7 | M | 6½ | 51 | 13 |
| 18.1 | N | 7 | 52 | 14 |
| 18.5 | O | 7½ | 53 | 15 |
| 18.9 | P | 8 | 54 | 16 |
| 19.4 | Q | 8½ | 55 | 17 |
| 19.8 | R | 9 | 56 | 18 |
| 20.2 | S | 9½ | 57 | 19 |
| 20.6 | T | 10 | 59 | 20 |
| 21.0 | U | 10½ | 60 | 22 |
| 21.5 | V | 11 | 61 | 23 |
Australian / UK sizes are most common in our work. Need a size we don't show? We can make any size from D through Z+5.
Getting it right.
Measure warm, not cold
Fingers shrink in cold weather and after exercise. Measure at room temperature, when your hands are at their normal size. Late afternoon is best.
Account for knuckle size
If your knuckle is significantly larger than your finger base, size up so the ring slides over the knuckle. We can add internal sizing beads to keep it secure once on.
Wide bands fit tighter
A 6mm-wide band feels tighter than a 2mm band on the same finger. For bands over 4mm wide, consider going up a quarter size.
Don't trust an old ring
If you're measuring an existing ring she owns, make sure it's a recent one and one she actually wears on the intended finger. Old rings often don't fit any more.
Don't know her size, and can't ask?
This is the most common question we get. Three reliable approaches:
- Borrow a ring she wears on the same finger, ideally while she sleeps. Trace the inner circle on paper.
- Ask her mother, sister, or best friend. They almost certainly know.
- Or, just guess. Most engagement rings come in around N (US 7), the median for women in Australia. Our free first resize covers any error.
Ready to start a piece?
Once you know your size, browse the collection or talk to us about a custom design. We'll handle the rest.