Bead size + wrist fit · 5 minute read
How many beads do you need for a bracelet?
For a 17 cm (about 6.7 in) wrist, our Studio used 25 beads at 8 mm or 21 at 10 mm. Compare all six completed designs below.
Start with your wrist measurement and bead size. Copying the count from another bracelet can give you a different fit if its beads are larger or smaller.
Start with your wrist measurement. Replace the Studio’s 15.5 cm starting setting with the measurement of the person who will wear the bracelet.
8 mm and 10 mm bead count chart by wrist size
We completed six clear quartz strands in the bead-by-bead Studio. Keeping the material the same made it easier to see what wrist size and bead diameter changed.
| Wrist measurement | 8 mm beads | 10 mm beads |
|---|---|---|
| 15.5 cm (~6.1 in) | 23 | 19 |
| 17 cm (~6.7 in) | 25 | 21 |
| 18.5 cm (~7.3 in) | 27 | 22 |
Use these completed Studio examples to compare bead counts. Set your own wrist measurement in the Studio and finish the strand to see its count.


A relative size comparison: the same clear quartz preview is shown at an 8:10 diameter ratio.
Why not divide wrist size by bead size?
A 17 cm wrist is 170 mm around. Dividing 170 by 8 gives a little over 21 beads—but that treats the beads as if their centers sit directly against your skin.
Round beads have thickness. The string runs through their centers, around a larger loop than the space your wrist occupies inside. The Studio accounts for bead thickness and a small fit allowance before rounding to a whole bead. That is why this 17 cm example uses 25 of the 8 mm beads.
Enter your actual wrist measurement in the wrist field. Adding your own allowance there would make the tool start from a larger wrist than the one you measured.
What changes when you choose 10 mm?
A 10 mm bead is 25% wider than an 8 mm bead. It makes each stone more prominent, even though the design uses fewer stones. At the same 17 cm wrist setting, our completed strand went from 25 beads to 21.
That also changes the room available for an arrangement. A design with several accent groups may need a new rhythm when four positions disappear. If you change bead size after building a mixed strand, check the sequence again and finish any empty positions before relying on the quote.
Choose 8 mm if you prefer the smaller bead scale; consider 10 mm if you want each bead to be more noticeable. Either can carry a detailed design. The number of beads is a fit and composition choice, not a measure of how much meaning a bracelet has.
Try it with your own wrist.
- Measure where you will wear it. Use a flexible tape close to the skin without pulling tight. If you only have paper or non-stretch string, mark the overlap and measure it flat. The full wrist measurement guide explains which size labels to compare.
- Open the bead-by-bead Studio. Set the wrist measurement and choose a bead size.
- Complete a simple strand. We used “Finish with clear quartz” for the comparison. You can choose another available material.
- Wait for the completed count and quote. Change one setting, then compare. If the new size leaves spaces, fill them before judging the finished design or price.
Complete every bead position to see the current quote for your chosen wrist setting, bead size and materials.
Buying a finished bracelet instead?
Finished bracelets come in four wrist sizes. Measure your wrist, then pick that size on the product page, for example on the 12 mm amethyst bracelet or the 10 mm silver sheen obsidian bracelet. We string the beads to fit it.
Choose bead size for the look and wrist size for the fit. For help choosing a particular strand, ask about fit before ordering. You can also compare the amethyst bead sizes before choosing.