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Are you utilizing the full capacity of your pallets and containers?

A 3D packing calculator for shipping containers and pallets. Compare three algorithms, mix orientations, and export the exact stacking plan — all in your browser.

Live Example
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Axes

HWL
Upright
Side

33

Boxes fit

93.8%

Utilization

2

Orientations

Container loading

Presets for 20', 40', 45' high-cube, 48', and 53' containers — or enter custom dimensions in mm, cm, or meters.

Pallet stacking

Eight regional pallet presets (EUR, GMA, Australian, Asian), with load-height caps and tare height support.

Layer-by-layer plan

Stacking instructions per layer, mixed orientations, and CSV export so your warehouse team can follow the plan.

Three algorithms, side by side

BoxFit runs your problem through three different packers in parallel so you can see the gap between naive and smart.

Basic

Single-orientation grid. The baseline anyone can do by hand — a sanity check.

Intermediate

Layer-by-layer 2D guillotine. Each layer is self-contained — ideal for automated unloading.

Efficient

Full 3D guillotine with mixed orientations. Typically 5–20% more boxes than Basic.

Whom is BoxFit for?

Freight forwarders

Quoting container loads for clients with mixed box sizes

Warehouse managers

Planning pallet stacks that fit under door and truck clearances

E-commerce operations

Deciding whether one big order ships as one container or two pallets

Procurement teams

Verifying supplier capacity claims before committing to PO volumes

Run your first calculation

Enter your box and container dimensions. Get three algorithm results, a 3D view, and a downloadable stacking plan — in seconds.

Open the Calculator
Boxfit.spaceShipping Box Calculator

© 2026 Boxfit.space. All rights reserved.

Optimize your container loading efficiency with precision calculations. Created by J. Atzert

Disclaimer: While our algorithms strive for maximum efficiency, a 100% optimal packing solution may not always be achievable due to computational resource limits.