Pallet Calculator

How to Calculate Boxes Per Pallet

The calculation runs in three steps. First, the carton footprint is fitted onto the pallet footprint in both horizontal orientations and the better result becomes the cartons per layer. Second, the available load height — the maximum loaded height minus the pallet height — is divided by the carton height to give the number of whole layers. Third, the weight allowance is checked: the maximum total weight minus the pallet weight, divided by the carton weight. The final quantity is the lower of the height-based and weight-based figures.

Cartons Per Layer

Cartons per layer is driven entirely by the carton footprint against the pallet footprint. For each orientation, the number of cartons along the pallet length is the pallet length divided by the placed carton length, rounded down, and the same is done across the pallet width. Multiplying the two gives the cartons on a full layer. Because only whole cartons fit, a small change in carton size can add or remove an entire row.

Pallet Height

The maximum loaded height normally comes from racking beam openings, trailer internal height, doorway clearance or handling equipment. It includes the pallet itself, so the usable load height is the maximum loaded height minus the pallet height (144 mm on a standard EUR pallet). Only whole carton layers fit into that space, and a partially filled top layer still occupies a full layer height.

Pallet Weight

Maximum total pallet weight is limited by rack beam capacity, forklift capacity, floor loading and transport rules. The pallet's own weight consumes part of that allowance, so the carton payload equals the maximum total weight minus the pallet weight. When heavy cartons are loaded, weight becomes the limiting factor before height and the top layer may only be partially filled.

Pallet Utilization

Footprint utilization compares the area covered by cartons on one full layer with the total pallet footprint. Volume utilization compares the total carton volume with the usable loading envelope — the pallet footprint multiplied by the available load height above the deck. A low footprint figure means the carton size does not modularize well against the pallet; a low volume figure with a good footprint figure usually points to a height or weight restriction.

Pallet Calculator Example

Take a carton of 400 × 300 × 250 mm on a EUR pallet of 1200 × 800 mm. Along the 1200 mm length, 1200 ÷ 400 = 3 cartons. Across the 800 mm width, 800 ÷ 300 = 2 cartons (rounded down), which gives 6 cartons per layer in that orientation. The alternative orientation — 300 mm along the length and 400 mm across the width — gives 1200 ÷ 300 = 4 and 800 ÷ 400 = 2, so 8 cartons per layer. The calculator picks the better orientation automatically. The layer count then follows from your maximum loaded height minus the 144 mm pallet height, divided by the 250 mm carton height, and the weight allowance is applied on top. Enter your own figures above to see the exact result for your limits.

These calculations are planning estimates and are not load safety advice. Always verify pallet stability, load distribution, packaging strength, local transport regulations and equipment restrictions before using calculated loading configurations in real operations.