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Corrugated Box Weight Calculator — GSM, Blank & Material

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Dimension unit Finished box length Finished box width Finished box height Outer liner GSM Fluting medium GSM Inner liner GSM Flute take-up factor Replace with board supplier or measured data.Glue contribution (GSM) Optional estimated adhesive contribution.Joint / glue tab Extra blank-length allowance Use only when supported by your converting convention.Extra blank-width allowance Use only when supported by your converting convention.Box quantity Optional material cost per kg 0 disables material-cost output.

Calculated result

377 g per box

1,440 × 550 mm estimated RSC blank

0.792 m² board area per box

476 g/m² estimated combined board grammage

37.7 kg for 100 boxes

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1. Estimated RSC blank length = 2 × (400 + 300) + 40 joint tab + 0 allowance = 1,440 mm.
2. Estimated blank width = 250 height + 300 flap span + 0 allowance = 550 mm.
3. Blank area = 1,440 × 550 ÷ 1,000,000 = 0.792 m².
4. Board grammage = 150 + 150 + (120 × 1.4) + 8 = 476 g/m².
5. Box weight = 0.792 × 476 = 377 g.
6. Batch material = 377 × 100 ÷ 1,000 = 37.7 kg.

Planning estimate only. RSC score allowances, flap geometry, trim, slots, moisture, coatings, ink, adhesive and actual flute take-up vary by board combination and converting line. For purchasing or freight billing, use the supplier dieline/board specification and verify finished boxes on a scale.

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