Examples
Examples
Try the starting example
- Finished pouch width (cm)
- 20
- Finished pouch height (cm)
- 12
- Finished boxed depth (cm)
- 4
- Seam allowance (cm)
- 1
- Outer and lining rectangle width, 2 of each (cm)
- 26
- Outer and lining rectangle height, 2 of each (cm)
- 16
- Bottom corner square cutout side (cm)
- 2
- Fabric rectangle count
- 4
Try another scenario
- Finished pouch width (cm)
- 20
- Finished pouch height (cm)
- 12
- Finished boxed depth (cm)
- 6
- Seam allowance (cm)
- 1
- Outer and lining rectangle width, 2 of each (cm)
- 28
- Outer and lining rectangle height, 2 of each (cm)
- 17
- Bottom corner square cutout side (cm)
- 3
- Fabric rectangle count
- 4
Calculation method
Calculation method
Outer and lining rectangle width, 2 of each (cm)
W+D+2s.
Outer and lining rectangle height, 2 of each (cm)
H+D/2+2s.
Bottom corner square cutout side (cm)
D/2; measured from raw edges including seam allowance convention.
Fabric rectangle count
Four rectangles: two outer and two lining.
Symbols and units
- a
- Finished pouch width (cm)
- b
- Finished pouch height (cm)
- c
- Finished boxed depth (cm)
- d
- Seam allowance (cm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Flat-panel boxed pouch model, zipper along top, seams s on all edges. Cut corner squares D/2 from raw bottom corners, sew box corners with s; no zipper tabs or interfacing quantities. Verify prototype and zipper construction. Supported limits: W,H,D>0; s>=0; D/2<min(W+D+2s,H+D/2+2s).
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.