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Container Load Calculator — How Many Boxes Fit in 20ft & 40ft Containers

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Container Planning presets; verify the actual equipment dimensions and payload.Carton orientation Use upright-only when this-side-up handling or the product design prevents side loading.Carton dimension unit Packed carton length External packed dimension.Packed carton width Packed carton height Gross-weight unit Gross weight per carton Include product and packaging.Order quantity Whole identical cartons.

Calculated result

315 cartons per 20 ft standard

Best grid: 9 × 5 × 7 = 315 cartons (L×W×H)

Orientation policy: allow all six orthogonal orientations

Payload limit: 1,446 cartons · controlling constraint: geometric fit

At capacity: 22.68 m³ (68.3% geometric cube) · 4,725 kg (21.8% payload)

Order 1,000 cartons → 4 containers; final container 55 cartons

Show the working

1. Normalize carton: 600 × 400 × 300 mm; gross mass 15 kg.
2. Check all six orthogonal carton orientations. Best grid = 9 × 5 × 7 = 315 cartons.
3. Payload capacity = floor(21,700 ÷ 15) = 1,446 cartons.
4. Usable planning capacity = min(315, 1,446) = 315 cartons.
5. Containers required = ceil(1,000 ÷ 315) = 4.

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