How to Measure Wrist Size for a Bracelet, Cuff or Beads

Wrap a piece of string or a strip of paper once around your wrist, just above the wrist bone, snug but not tight. Mark where the end overlaps, lay it flat along a ruler and read the centimetres. That number is your wrist size. For a clasped bracelet, add about 1 cm for a snug fit, 2 cm for a comfortable fit or 3 cm for a loose one.

Open copper cuffs bend to fit and our crystal bead bracelets stretch, so each gets its own rule below. Shopping for a ring instead? Our ring size guide uses the same paper trick around the finger.

Last updated September 2026

How do you measure your wrist with string and a ruler? ✨

You do not need a tape measure. A shoelace, a ribbon or a strip cut from an envelope all work, and paper stretches least. Then:

1. Wrap it once around the wrist bone. Keep it flat against the skin and snug, without pressing a dent into your wrist. This is where a bracelet naturally sits.
2. Mark the overlap. Pinch the spot where the end meets the rest, or make one pen mark.
3. Lay it along a ruler. Read from the end to your mark in centimetres.
4. Measure twice. If the two numbers differ, keep the larger one. A bracelet that is slightly roomy is worn; a tight one stays in the drawer.

This is the same string, paper and ruler method jewellers use, so your number will match any size chart you meet. Write it in your phone. Every cuff and round-bead listing gives its length in centimetres, so the number does the choosing for you.

Which bracelet length should you buy?

A clasped chain or a bangle-style bracelet needs room to move. The allowance depends on how you like to wear it. Jewellers add about 2 cm for a comfortable everyday fit, a little less for snug and a little more for loose.

Buying a gift and cannot measure the wrist? Most adult wrists fall in a narrow band. The largest public measurement set we could find is the ANSUR II survey of 6,068 US Army adults, measured in 2010 to 2012. Its median wrist is 15.4 cm for women, with most between 14.2 and 16.8 cm, and 17.6 cm for men, with most between 16.2 and 19.1 cm.

Those are soldiers, not New Zealanders, so treat them as a guide: a 15 cm wrist is ordinary for a woman, and 17 to 18 cm for a man. When in doubt, choose the comfort column, and pick the roomier size.

How do adjustable copper and magnetic cuffs fit? 🔮

A copper cuff is an open band, so it has no clasp and no fixed size. Its fit is the length from end to end plus the gap between the ends. Our cuffs are listed by that end-to-end length: about 16 cm for the 8 Magnet, 18.5 to 19 cm for the 6 Magnet, Swirl, Spiral Pattern and Pattern cuffs, 20 cm for the Large 12 Magnet, and 22 cm for the Handmade Pure Copper cuff in Large.

Our counter rule: choose the cuff whose end-to-end length is closest to your wrist measurement, and let a finger-wide gap supply the room. Copper is soft, so the cuff eases closed on a slimmer wrist, and on a very slim wrist the ends can overlap a little. It also eases open by about 6 mm for a larger wrist.

🧿 Putting it on: hold the cuff with the opening facing your wrist, turn your thumb up, and roll it on from the thumb side or the soft inside of the wrist. Never hook it over the outside of the wrist and pull it across the top; that bends the centre and loosens the fit.

Adjusting it: do it with the cuff off your wrist. Rest it in your palm, hold the back firmly, and bend one arm at a time with your thumb and first finger, a little at a time, until it hugs without pinching. Do not put it on and squeeze; that puts all the strain on the centre.

Once it fits, adjust it and leave it, because copper that is flexed open and closed every day eventually cracks. The fit check is simple: one finger should slide between the cuff and your wrist, and the magnets should rest on the inside, against your skin.

One care note that matters: Healthify NZ advises that magnetic bracelets should not be worn by people with pacemakers. If that is you or the person you are buying for, choose a bead bracelet or ask us about plain copper.

Wondering what the little magnets are for? Our copper magnetic bracelet guide tells the whole story. Tradition says to wear copper on the wrist you use less, the receiving hand, or on the side that aches; our copper meaning guide covers which wrist and why. A faint green mark under the cuff is copper meeting skin, and our side effects guide explains it.

How do beaded crystal bracelets on elastic size? 💎

Our round bead crystal bracelets are strung on clear elastic and come in four sizes. Small has 6 mm beads at about 19 cm around, Medium has 8 mm beads at about 20 cm, Large has 10 mm beads at about 21 cm, and Extra Large has chunky 12 mm beads at about 21 cm. Chip bracelets, like the clear quartz chip bracelet, come in one stretchy size.

Because the elastic stretches, the listed size is the bracelet at rest. Choose the size closest to your wrist plus 2 cm. If you sit between two sizes, go up: bigger beads take more room on the inside, and a bead bracelet that is slightly loose swings prettily, while a tight one strains the cord. Unsure? Message us your wrist measurement and we will match it.

🌙 Roll, never pull. Gather your fingers together and roll the bracelet over your knuckles rather than stretching it wide and yanking. Take it off the same way. Elastic dislikes water, perfume, lotion and hot sun, so slip the bracelet off before a shower or a swim and store it out of the window. Treated this way, the cord lasts years, and you can always bring a tired bracelet to us for restringing advice.

Choosing a bracelet in New Zealand 🌙

With your number in your phone, the rest is pleasure. At our check on 18 September 2026, magnetic copper cuffs started around NZ$25 for the Pattern cuff, with the Swirl at NZ$35, the Spiral Pattern, 6 Magnet and Handmade Pure Copper cuffs at NZ$40, and the Large 12 Magnet at NZ$50. Plain copper cuffs without magnets were sold out online at that check; ask in store or watch the copper bracelets collection.

Round bead crystal bracelets start around NZ$12 for the Opalite in Small, NZ$15 for Rose Quartz, and NZ$22 for Amethyst; chip bracelets start under NZ$6. Sizes and prices live on each listing. You can try cuffs and bead sizes on at Shop 62, Westfield Manukau, and we ship across New Zealand.

✨ Before you slide it on, hold it for one breath and decide what it is for: a steady hand, a warm wrist, a small daily reminder. Then measure once, and browse the copper bracelets or the crystal bracelets with your number in hand.

Frequently asked questions

What is the average wrist size?

In the ANSUR II survey of 6,068 adults, the median wrist was 15.4 cm for women and 17.6 cm for men, with most people within about 1.5 cm of those. It measured US Army personnel, so use it as a guide, not a rule. If you can, measure the wrist; if you cannot, buy the comfort size for 15 cm or 17.5 cm.

Should a bracelet fit tight or loose?

Comfortable, which means about 2 cm of room on a clasped bracelet and one finger under a copper cuff. Tight bracelets pinch when your hands warm up during the day; loose ones catch on sleeves. If you plan to sleep in a cuff, as many copper wearers do, lean toward comfortable rather than snug.

Can I make a copper cuff smaller or bigger?

Yes, gently. Take it off, rest it in your palm, and bend one arm at a time until it hugs your wrist. A cuff will ease about 6 mm either way. Slim wrists can let the ends overlap a little. Adjust it once and leave it, rather than flexing it every day, so the copper keeps its spring.

Which wrist should I wear a copper bracelet on?

Tradition says the wrist you use less, the receiving hand, so the copper sits still against the pulse all day. Many wearers simply choose the side that aches. Either way, measure the wrist you will actually wear it on; most people's two wrists differ by a few millimetres.

Sources

Sizing and care guidance checked 18 September 2026: The Jewellery Room bracelet size guide, Freeform Jewellery bracelet guide, Silver Eagle Gallery on cuff bracelets, Pure Whimsy Jewelry on adjusting cuffs, Vitalis copper magnetic bracelet fitting, Kernowcraft on elastic cord, Mack & Rex on elastic care, and Healthify NZ on pacemakers. Wrist ranges were computed from the public ANSUR II working databases. Cuff lengths, bead sizes and prices come from the live Rivendell listings on the same date.