Fuse bead size calculator
A 2.6 mm mini fuse bead is about 2.6 mm wide. Beads × 0.26 = finished size in cm (× 0.5 for 5 mm beads).
Quick reference (beads → cm)
| Beads | 2.6 mm (mini) | 5 mm (standard) | Pegboards (29×29) |
|---|---|---|---|
| 10 | ≈ 2.6 cm | ≈ 5.0 cm | 1×1 |
| 16 | ≈ 4.2 cm | ≈ 8.0 cm | 1×1 |
| 20 | ≈ 5.2 cm | ≈ 10.0 cm | 1×1 |
| 29 | ≈ 7.5 cm | ≈ 14.5 cm | 1×1 |
| 32 | ≈ 8.3 cm | ≈ 16.0 cm | 2×2 |
| 40 | ≈ 10.4 cm | ≈ 20.0 cm | 2×2 |
| 50 | ≈ 13.0 cm | ≈ 25.0 cm | 2×2 |
| 52 | ≈ 13.5 cm | ≈ 26.0 cm | 2×2 |
| 58 | ≈ 15.1 cm | ≈ 29.0 cm | 2×2 |
| 60 | ≈ 15.6 cm | ≈ 30.0 cm | 3×3 |
| 78 | ≈ 20.3 cm | ≈ 39.0 cm | 3×3 |
| 80 | ≈ 20.8 cm | ≈ 40.0 cm | 3×3 |
| 87 | ≈ 22.6 cm | ≈ 43.5 cm | 3×3 |
| 100 | ≈ 26.0 cm | ≈ 50.0 cm | 4×4 |
| 116 | ≈ 30.2 cm | ≈ 58.0 cm | 4×4 |
| 120 | ≈ 31.2 cm | ≈ 60.0 cm | 5×5 |
The finished size can vary by a few percent depending on the beads and how you iron them.
FAQ
How big is a 2.6 mm bead design in cm?
Each bead is about 2.6 mm, so beads × 0.26 gives the size in cm: 29 beads ≈ 7.5 cm, 52 beads ≈ 13.5 cm, 78 beads ≈ 20.3 cm.
How many beads make 10 cm?
About 38 beads with 2.6 mm beads, about 20 with 5 mm beads.
How big is one 29×29 pegboard?
About 7.5 cm square with 2.6 mm beads. Pegboards for 5 mm beads are a different size, so use the board made for your beads.