Free tool · Sizing
Jewellery Size Guide
Measure once, convert with confidence: ring sizes across international systems, necklace lengths, bracelets, bangles and earrings.
Ring sizes
Ring sizes are labelled differently around the world. Measure in millimetres first, then convert.
| Inner diameter (mm) | Circumference (mm) | US / Canada | UK / Australia | EU (ISO) |
|---|---|---|---|---|
| 14.9 | 46.8 | 4 | H | 47 |
| 15.3 | 48.0 | 4.5 | I | 48 |
| 15.7 | 49.3 | 5 | J½ | 49 |
| 16.1 | 50.6 | 5.5 | K½ | 50.5 |
| 16.5 | 51.9 | 6 | L½ | 52 |
| 16.9 | 53.1 | 6.5 | M½ | 53 |
| 17.3 | 54.4 | 7 | N½ | 54.5 |
| 17.7 | 55.7 | 7.5 | O½ | 55.5 |
| 18.1 | 57.0 | 8 | P½ | 57 |
| 18.5 | 58.3 | 8.5 | Q½ | 58 |
| 18.9 | 59.5 | 9 | R½ | 59.5 |
| 19.4 | 60.8 | 9.5 | S½ | 61 |
| 19.8 | 62.1 | 10 | T½ | 62 |
Approximate conversions based on commonly published charts. Sellers' charts differ slightly, and Indian and Japanese sizes follow their own numbering, so always check the seller's chart. See the ring size guide.
Necklace lengths
| Style | Centimetres | Inches | Where it sits |
|---|---|---|---|
| Collar | 30–33 | 12–13 | Around the middle of the neck |
| Choker | 35–40 | 14–16 | Base of the neck |
| Princess | 43–48 | 17–19 | Just below the collarbone |
| Matinee | 50–60 | 20–24 | Upper chest |
| Opera | 70–90 | 28–35 | Around the bust or lower |
| Rope | 100+ | 40+ | Very long; can be doubled |
Lengths include the clasp. A pendant adds its own drop. See how to choose necklace lengths.
Bracelet length
Measure your wrist just below the wrist bone with a soft tape or paper strip, then choose how you like it to fit.
A guide only; bracelet designs fit differently. See bracelets and cuffs.
Bangle sizes
Indian bangle sizes describe the inner diameter in inches and sixteenths of an inch. Size 2.6 means 2 and 6/16 inches.
| Indian size | Inner diameter (mm, approx.) | Inches |
|---|---|---|
| 2.2 | 54.0 | 2 2/16 |
| 2.4 | 57.2 | 2 4/16 |
| 2.6 | 60.3 | 2 6/16 |
| 2.8 | 63.5 | 2 8/16 |
| 2.10 | 66.7 | 2 10/16 |
Openable kada are often sized by wrist instead. Check each seller's chart. See bangles and kada.
Earring dimensions
Earrings are usually listed as length × width. Check whether the length includes the hook or post, and look for the weight in grams per earring.
| Length | Typical look | Good for |
|---|---|---|
| Up to 2 cm | Studs, huggies, small drops | Daily wear, work |
| 2–4 cm | Jhumkis, medium drops | Dinners, festivals |
| 4–7 cm | Large jhumkas, chandbalis | Weddings, parties |
| 7 cm and more | Shoulder-dusters, bridal earrings | Statement looks; mind the weight |
Tip: weigh a pair you find comfortable on a kitchen scale and use it as your benchmark. See lightweight vs heavy earrings.
Centimetres and inches
1 inch = 2.54 cm exactly.