Sewing & crafts
Bead string length planner
Fit whole beads and spacers into a target necklace or bracelet length.
A clear answer. Here’s how.
For n beads, occupied string length is n × bead length + (n−1) × spacer length, plus the clasp/end allowance. Finds the largest whole bead count that does not exceed your target, with zero beads if none fit. Bead dimensions are measured along the hole/string. This is straight length arithmetic; curved fit, knots and stretch need separate allowance.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Target total length (cm)
- 45
- Length occupied by clasp and ends (cm)
- 3
- Bead length along the string (mm)
- 8
- Gap or spacer between beads (mm)
- 1
Example result
- Whole beads
- 46
- Internal spacers or gaps
- 45
- Beads and gaps length
- 41.3 cm
- Total with clasp and ends
- 44.3 cm
- Unused target length
- 0.7 cm