Examples
Examples
Try the starting example
- Box length (cm)
- 40
- Box width (cm)
- 30
- Box height (cm)
- 20
- Glue flap width (cm)
- 3
- Ideal blank length (cm)
- 143
- Ideal blank width (cm)
- 50
- Blank area (cm²)
- 7150
Try another scenario
- Box length (cm)
- 10
- Box width (cm)
- 5
- Box height (cm)
- 8
- Glue flap width (cm)
- 1
- Ideal blank length (cm)
- 31
- Ideal blank width (cm)
- 13
- Blank area (cm²)
- 403
Calculation method
Calculation method
Ideal blank length (cm)
Two lengths + two widths + glue flap.
Ideal blank width (cm)
Box height + one box width for two half-width closing flaps.
Blank area (cm²)
Ideal blank length × ideal blank width.
Symbols and units
- a
- Box length (cm)
- b
- Box width (cm)
- c
- Box height (cm)
- d
- Glue flap width (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
- One idealised regular-slotted rectangular blank with closing flaps of half the box width. Slot cuts, board thickness, score allowances and manufacturing tolerances are excluded; not a supplier production drawing.
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.
Further reading
OpenStax: ratios, percentages and rectangular geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.