Enter the dimensions, weight, and quantity of each item and the calculator works out the total volume and weight against the container's or truck's real capacity, then shows how the cargo fits.
Web App
Know your container space before you book
Enter your cargo dimensions and see instantly how it fits into a container or truck — how much space is used, and how much is left to plan around.
How It Works
From cargo list to loading plan in three steps
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Enter cargo details
Add dimensions, weight, and quantity — boxes, pallets, or custom cargo.
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Choose container or truck
Pick the transport type and the calculation adapts to it instantly.
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See how it fits
Get used and available space in seconds, before you commit to a booking.
What It Covers
Built for real cargo, not just boxes on a spreadsheet
Standard 20ft, 40ft, and 40ft high cube containers, plus trucks — with support for the cargo types that don't fit neatly into a simple box calculation.
Why It Helps
Plan the load before it costs you money
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Less wasted space
See exactly how much room is left instead of guessing and leaving a container half full.
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No more manual spreadsheets
Replace back-of-the-envelope math with an instant, repeatable calculation.
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Lower shipping costs
Fewer part-loads and better use of the space you're already paying for.
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Fewer booking mistakes
Catch an overbooked or underused container before it turns into a costly surprise.
Built For
Whoever plans the load
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Freight forwarders
Confirm a load fits before quoting or booking a container.
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Traders & exporters
Check whether a shipment needs FCL or fits comfortably as LCL.
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Warehouse & ops teams
Plan how mixed cargo gets packed before it reaches the dock.
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Logistics platforms
Try the calculator here, then bring the same logic into your product through the API.
For Developers
Need this inside your own system?
The same load calculations are available through the Qubictron Load Calculator API, built for booking platforms, CRMs, and TMS systems.
Read about the API
FAQ
Got any questions?
A 40ft container holds more than double the volume of a 20ft one — roughly 67 m³ against 33 m³. Which one makes sense depends on your cargo volume and weight, which is exactly what the calculator compares for you.
Once your cargo details are entered, the calculator shows used and remaining space right away — as both a percentage and a volume figure — so you can decide whether more cargo fits.
Yes. Switch the transport type to a truck and the same cargo list is recalculated against truck dimensions and weight limits instead of a container's.
Yes — the Load Calculator API returns the same fit and capacity results shown here, built for booking platforms, CRMs, and TMS integration.
Ready to plan your next load?
Get access to the calculator yourself, or bring the same data into your own platform.
Need it on your own site?
Pull the same load calculations into your platform with the API.
See the API