Crafts calculator
Plan repeated fabric pieces with seam allowance, usable width, grain direction and pattern repeat.
A 60 × 40 cm piece with 1.5 cm seam allowance on every side is cut at 63 × 43 cm. Across 140 cm fabric, 3 pieces fit side by side, so 8 pieces need 3 rows: 3 × 63 = 189 cm, or 2.079 m with a 10% allowance.
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Enter finished piece dimensions. Only allow rotation when grain and pattern direction permit it.
A 60 × 40 cm piece with 1.5 cm seam allowance on every side is cut at 63 × 43 cm. Across 140 cm fabric, 3 pieces fit side by side, so 8 pieces need 3 rows: 3 × 63 = 189 cm, or 2.079 m with a 10% allowance.
| Input | Value |
|---|---|
| Finished piece length | 60 cm |
| Finished piece width | 40 cm |
| Pieces | 8 |
| Seam allowance on each edge | 1.5 cm |
| Usable fabric width | 140 cm |
| Rotation | Keep grain direction |
| Lengthwise pattern repeat | 0 cm |
| Extra allowance | 10 % |
| Result | Value |
|---|---|
| Cut piece length | 63 cm |
| Cut piece width | 43 cm |
| Pieces per row | 3 |
| Rows to cut | 3 |
| Fabric length to buy | 2.079 m |
The pieces must fit across the usable width of the cloth. A narrow fabric can require multiple lengths and joins even when its total area looks sufficient. Check selvedges, seam allowances and cutting orientation before treating an area-only estimate as a cutting plan.
Yes, where they affect the project, but make those allowances explicit. Directional prints and repeats can prevent rotating pieces to save fabric. Prewashing or finishing can change dimensions, so follow the cloth's care instructions and test a sample when the finished fit matters.
No. Enough total fabric area does not guarantee that each pattern piece fits within the usable width or follows the required grain. Make a cutting layout using the actual pieces, seam allowances and directional print. The calculator supports quantity planning; the pattern and the cloth's dimensions decide whether a layout is possible.
Calculation/content reviewed 4 October 2026. Source: Babushka Market’s displayed formulas, units and labelled editable assumptions. How the estimates work
