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Calculator Tools
Packaging Calculators

Box Surface Area Calculator

Cardboard area needed for a box, including flaps and glue tabs — for packaging material costing.

Enter values

Results update as you type.

Result

Board per box

0.792 m²

Total board
79.2 m²
Material cost
$71.28
Box surface area
0.59 m²

About the Box Surface Area Calculator

Cardboard area needed for a box, including flaps and glue tabs — for packaging material costing.

Also known as: cardboard needed, packaging material calculator, box blank size, packaging-material.

How to use this calculator

  1. Enter length (cm), width (cm), height (cm), boxes and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

RSC blank ≈ (2L + 2W + tab) × (H + W)

Worked example

Using the values pre-filled in the calculator above:

  • Length (cm) = 40
  • Width (cm) = 30
  • Height (cm) = 25
  • Boxes = 100
  • Cost per m² = 0.9

the calculator returns:

  • Board per box: 0.792 m²
  • Total board: 79.2 m²
  • Material cost: 71.28
  • Box surface area: 0.59 m²