For a flexible bracelet, record the open length and usual fastening setting. For a rigid bangle, measure the inside dimensions; for beads, take an approximate inner measurement of the relaxed loop. Write down the units and how you measured, so a seller can match it to the new design.
Key facts
- For a flexible bracelet, note the open length and the clasp setting you actually use. Measuring to the last extension link only gives you the maximum.
- A round closed bangle’s inner diameter is measured across the center from inside edge to inside edge, excluding the metal thickness.
- A box clasp, overlapping magnetic ends or a screw fitting may make the open tip-to-tip length longer than the fastened loop.
- A stretch bracelet is measured in its relaxed loop with a paper strip inside, not pulled straight or doubled as a flattened loop.
- A bracelet’s length describes that bracelet, so a 19.5 cm open length doesn’t mean a 19.5 cm wrist.
You will need a ruler, a narrow strip of paper, a pen and, if available, a soft measuring tape. Use a clear surface with a soft cloth beneath the bracelet. Leave curved pieces in their natural shape; don’t force them flat.
1. Choose a useful reference bracelet
Pick a bracelet that fits comfortably on the wrist you’re buying for and is made in a similar way to the new one. Note whether it sits close, moves a little or hangs loose, and its width or bead size, because a wide strap, big beads and a fine chain take up the inside of the loop differently. Give the new seller the measurement and the bracelet type together. Its length isn’t your wrist size.
2. Measure a flexible chain, cord or leather bracelet
- Note the fastening setting before opening it. If it has an extension chain, note which link you use. For a buckle, record the hole. Measuring to the last extension link gives the longest setting, which may not be the one you wear.
- Open the bracelet and lay it beside the ruler. Gently straighten a flexible chain without pulling it taut. Let curved leather rest naturally; use a soft tape along its length if needed. Do not bend a stiff or stone-set piece to make it match a straight ruler.
- Start at the zero line. The ruler’s physical edge may extend beyond zero. Keep the bracelet straight along the scale and read it from directly above. Millimeters are convenient for small differences; 190 mm is 19 cm.
- Record the endpoints. For an end-to-end measurement, include the clasp and state whether you included the whole extension. Separately record the length to the fastening link you actually use. On a buckle bracelet, the loose tail beyond the chosen hole is not part of the wearing loop.
- Repeat once. If the two readings differ, check for a bent link, an end that moved or a chain you pulled tight, then measure again.
If you also measure the chain without the clasp, label it separately from the end-to-end and clasp-point readings, so the seller can pick the one their chart uses.
Open length and closed fit are different readings
Look at how the clasp closes. A tongue that slides into a box, overlapping magnetic ends or a screw fitting may make the open tip-to-tip length longer than the fastened loop. An extension tail can also hang outside that loop. Don’t knock off a guessed “standard clasp allowance.” For more detail, see how clasp type affects bracelet fit.
If you need an approximate closed inner circumference, fasten the bracelet at its normal setting and support it in a relaxed loop. Place a narrow paper strip around the inside, against the surfaces that face your wrist. Mark where the paper completes one circuit, then measure the strip. Keep the paper smooth without pushing the bracelet outward. If you can’t hold the shape steady, ask a jeweler to measure the inside for you.
3. Measure a rigid bangle or cuff inside
For a round closed bangle, measure across the center from one inside edge to the opposite inside edge, excluding the metal thickness. Rotate it and repeat to check that the opening is circular. Label it “inner diameter,” not just “bangle size.”
For an oval or hinged bangle, close it normally and record both the widest inside width and the shorter inside height. A single diameter cannot describe an oval. For an open cuff, also record the gap between its ends and its band width. Leave the cuff as it is; opening it wider changes the very shape you’re trying to measure.
Compare the same measurement the new listing gives, whether that’s inner circumference, inner diameter, inside height or gap width. They describe different parts of the shape. A slip-on bangle also has to go over your hand, so a hinged bracelet’s inner width won’t tell you whether it will.
4. Measure beads without stretching the elastic
Leave a stretch bracelet in a relaxed loop. Don’t pull it into a straight line or double the length of a flattened loop; neither tells you the room inside. Use the paper strip inside the loop as it rests, keeping the paper against the inner faces of the beads, not tucked into the gaps. Record an approximate inner measurement and the bead diameter.
For beads on a strand with a clasp, you can also note the open end-to-end length, clearly labeled, and compare it with bracelets of a similar bead size. If the old elastic sags or no longer springs back, it won’t be a good guide for a new one.
A worked reading to copy into your notes
Suppose a flexible chain starts at the ruler’s 10 mm mark and ends at 205 mm. Its end-to-end length is 195 mm, or 19.5 cm. Record “19.5 cm open, including clasp and full extension; worn on third extension link.” That doesn’t mean the wrist is 19.5 cm.
When you order, compare like with like, and don’t add extra room on top of a bracelet that already fits. If the seller asks for wrist circumference, use our wrist-measuring instructions. Our explanation of bracelet length versus wrist circumference and the size and fit hub can help you interpret the result.