Pallet & container loading calculators.
Start with pallets or containers. PackMize uses physical dimensions, valid orientations and capacity limits instead of relying on volume alone.
Pallet Calculator
Optimize one carton size on standard or custom pallets.
Open →Container Loading Calculator
Optimize a single SKU in 20 ft, 40 ft and High Cube containers.
Open →Multi-SKU Load Planner
Build mixed pallets or direct container loads with Hybrid layer-safe/support-aware 3D, priorities, stops and groups.
Learn more →Why packing geometry matters
Volume is only an upper bound. Rectangular items can leave unusable voids because side lengths, orientation, payload and stack height constrain the arrangement. PackMize therefore calculates actual placements for the supported packing problems.
Learn the constraints before using the result
The Pallet Loading Guide explains boxes per layer, TI-HI, height and payload. The Container Loading Guide explains why CBM is only a first check and how geometry, door dimensions and payload interact.
Which packing calculator should I use?
| Your question | Tool | What it models |
|---|---|---|
| How many boxes fit on a pallet? | Pallet Calculator | One carton size, a pallet base and repeated layers |
| How many cartons fit in a 20 ft or 40 ft container? | Container Loading Calculator | One carton size loaded directly into a container |
| How should I load an order with several SKUs? | Multi-SKU Load Planner | Mixed pallets or direct container loads from a saved project |
The single-SKU calculators remain the fastest option for one carton type. Use the Multi-SKU planner for project-based orders containing several products and quantities.