Planning calculators for packaging and freight. Verify carrier, pallet, and equipment limits before final decisions.
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Container Loading Calculator — 20ft, 40ft & 40HC

Estimate axis-aligned carton capacity, CBM utilization, and payload limits for 20GP, 40GP, and 40HC containers.

Inputs

Results update as you type.

cm
cm
cm
kg
Use “upright” for cartons that must not be laid on their side.
cm
cm
cm
kg
Floor-grid preview for the best axis-aligned orientation. Actual loading can differ.

How this container estimate works

The calculator tests all six axis-aligned carton orientations and finds the largest simple rectangular grid that fits inside the entered container dimensions. If carton weight and payload are entered, it also caps the result by payload.

Planning capacity = min(best orthogonal grid count, payload-limited count)

Why actual loading can differ

A real load can be lower because of doors, corrugation, dunnage, load securing, aisle requirements, deformation, handling clearance, container manufacturing tolerances, and weight distribution. A sophisticated mixed-pattern or 3D optimizer may also fit more cartons than this simple grid. Use the editable dimensions from the actual equipment or carrier specification.

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