Logistics & Shipping
Container Capacity Calculator Online Free
Estimate carton capacity for 20 ft, 40 ft and 40 ft high-cube shipping containers.
Estimate container capacity
Estimate carton count using internal dimensions, orientation and payload limits.
Estimated cartons
270
Best geometric fit
270
Volume utilisation
68.4%
Estimated cargo weight
3240 kg
Straight-row estimate only. Real loading can be lower because of doors, pallets, mixed sizes, weight distribution and handling clearance.
About this logistics calculator
Use this calculator for quick procurement, freight and warehouse planning when a shipment contains one uniform carton size.
Common use cases
- ✓ Container booking estimates
- ✓ Supplier packing-plan review
- ✓ Import shipment planning
- ✓ Volume and payload comparison
How to use it
- Select the container type.
- Enter packed carton dimensions and gross weight.
- Review geometric and weight-limited capacity.
- Apply practical loading allowance before booking.
Important notes
- • Container dimensions and payloads vary by equipment and operator.
- • The estimate assumes uniform rectangular cartons and straight stacking.
- • Confirm floor loading, axle limits and cargo securing requirements.
Related Logistics Tools
Frequently asked questions
How many cartons fit in a container?
The count depends on internal container dimensions, carton dimensions, orientation, payload and practical loading constraints.
Does the calculator rotate cartons?
It checks the six simple axis-aligned carton orientations and uses the best straight-row estimate.
Why can actual loading be lower?
Doors, pallets, mixed sizes, weight distribution, damaged space and handling clearance can reduce real capacity.
Can this replace load-planning software?
No. It is a quick estimate for uniform cartons, not a complete three-dimensional packing optimiser.