CargoPro
Free 3D container loading calculator and pallet loading tool. Plan 20ft/40ft loads with pallet or floor packing, batch import, PDF export and cloud backup — no login required.
Try Now3D bin packing is a combinatorial optimization problem. CargoPro’s free container loading calculator uses a greedy heuristic: sort first, then place item by item under constraints for a fast usable plan.
With a fixed container volume, pack as much cargo volume as possible.
η = Σ Vᵢ / Vbin ， Vᵢ = lᵢ · wᵢ · hᵢ
The closer η is to 1, the better. Weight and stacking constraints still apply.
The candidate free space must fit the item (use a feasible orientation if rotation is allowed).
lᵢ ≤ L' ∧ wᵢ ≤ W' ∧ hᵢ ≤ H'
L', W', H' are candidate cavity sizes; otherwise try the next position.
A typical approach is largest-first (FFD-style), score each cavity, and place at the best score.
choose argmax score(slot), e.g. score = −leftover void
It only optimizes the current step and rarely backtracks, so it stays fast.
Plan 20ft/40ft container loads and pallet loading in one free calculator — cargo rules, 3D preview, PDF export and cloud backup without login.
Enter cargo, container and pallet data to generate a stuffing plan. Batch text import, PDF export and 3D preview help you verify utilization before booking.
Tune fragile, bearing-face, stack-layer and heavy-bottom rules. Sync to the cloud — no account required for the free container loading calculator.
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Try full loading plans with limits on plan count and custom features.
One-time purchase unlocks all features with no limits.
This app includes in-app purchases. One-time payment unlocks all features.
