Automatic utilization math
See utilization %, placed item counts, and unplaced leftovers for every container option without touching a spreadsheet.
Container Loading Calculator
Calculate capacity before you book a box
The JustLoad.it calculator estimates CBM, utilization, and optimal packing sequences in seconds. Stay within budget and communicate the plan clearly with your partners.
How JustLoad.it Elevates Your Calculations
Container library plus custom sizes
Start with built-in ISO dimensions, then add your own measurements and reuse them whenever needed.
3D preview and saved history
Review an interactive 3D load view, then store the simulation in your dashboard so you can revisit results or build the next shipment faster.
How to get accurate results
- Record length, width, height, quantity, and weight for every item so utilization and weight alerts stay accurate.
- Use accurate container dimensions when comparing options to ensure realistic capacity estimates.
- Set stacking and orientation preferences for each item to get the most accurate placement calculations.
- Save each simulation to your dashboard so you can revisit it and reference the results for future shipments.
Related Container Loading Solutions
Mixed Cargo Loading
Efficiently load containers with diverse cargo types. Combine pallets, boxes, crates, and irregularly shaped items while maximizing space utilization.
Heavy Equipment Loading
Plan container loads for heavy machinery and equipment. Ensure weight compliance, proper placement, and safe transport for industrial equipment shipments.
FAQ
Container Loading Calculator FAQ
JustLoad.it supports all standard shipping containers including 20ft, 40ft, 40ft High Cube, 45ft High Cube, and 53ft Domestic containers. Each container type uses accurate internal dimensions for precise calculations. You can also define custom container dimensions for specialized equipment.
Our 3D bin packing algorithm achieves 85-95% container utilization for most cargo types. The algorithm considers item dimensions, weight limits, stacking constraints, and orientation preferences to generate realistic, implementable loading plans.
Yes! You can edit any saved shipment to add or remove items, change container types, or update notes. The system automatically recalculates the optimal loading configuration whenever you make changes.
JustLoad.it supports centimeters (cm), feet (ft), and inches (in). You can switch between units at any time, and the system automatically converts measurements. Your preferred unit is saved for each shipment.
Yes! Pro plan users can print detailed reports with loading sequences, 3D visualizations, and all item details. All users can export data to CSV or Excel format. Reports are formatted for easy sharing with warehouse teams, freight forwarders, and logistics partners.
Yes! Pro plan users can bulk import items from Excel (.xlsx) or CSV files. Simply upload your spreadsheet with columns for length, width, height, quantity, weight, and notes. The system validates your data and shows any errors before importing.
Use the calculator today
Pick the plan that fits your volume, checkout, and start running real capacity scenarios inside JustLoad.it immediately.