Pallet & Container Calculator

How Many Cases Fit on a Pallet?

That depends on two things: the footprint math (how many cases fit in one layer on the pallet) and the stack height (how many layers the case rigidity, pallet capacity, and vehicle ceiling will support). Enter case dimensions and weight plus the pallet size, and this calculator returns cases per layer, layers per pallet, and total cases, along with weight and cube-utilization checks against a container or trailer. The sections below walk through the math and the assumptions behind the container presets.

How Pallet Loading Is Calculated

Pallet loading uses floor-division math: divide the pallet length by the case length to get cases per row, multiply by cases per column (pallet width divided by case width), and that gives you cases per layer. Stack layers until you hit the maximum stack height or the pallet weight limit, whichever comes first. This tool checks both the normal and rotated (90°) case orientations and picks whichever fits more per layer. The result is a conservative estimate: real warehouse operations may achieve slightly different counts depending on case rigidity, shrink-wrap overhang, and stacking patterns.

Standard Container and Trailer Dimensions

The six presets cover the most common shipping configurations: 20-foot and 40-foot ISO containers for ocean freight, 40-foot and 45-foot high-cube containers for volume-heavy imports, and 53-foot and 48-foot domestic trailers for North American truck freight. Each preset uses approximate internal usable dimensions after structural walls and corrugation. Actual usable space varies by container age and manufacturer, always confirm with your carrier or freight forwarder for binding load plans.

Why Cube Utilization Matters

In LTL and ocean freight, you pay for space even when the container is not full. Low cube utilization means you are shipping air. The volume of a pallet at full cube (length × width × stack height) is the theoretical ceiling, and anything short of that is capacity you are paying for but not using. Improving pallet patterns (adjusting case orientation, optimizing layer counts, or switching to a higher-cube container) directly reduces per-unit freight cost. Pair this calculator with the NMFC Freight Class Estimator for density-based LTL class and the Landed Cost Calculator to see how freight flows into per-unit cost. Use the Pallet Pattern Generator for printable Ti × Hi warehouse labels.

Common Pallet Questions

How many boxes fit on a pallet? Enter your box (case) dimensions and weight above, choose a pallet size, and the calculator shows boxes per layer, layers per stack, and total count. It tests both orientations and picks the better fit.

How do I calculate the volume of a pallet? Multiply pallet length × width × stack height. This gives the cubic volume at full cube. The calculator reports this as cube utilization: the percentage of available space your cases actually fill.

How many pallets fit in a 20-foot container? A standard 20′ ISO container holds roughly 10 standard pallets (48″ × 40″) in a single-stack floor plan: the exact count depends on pallet height and container weight limits. Select the 20′ preset above to see the calculation for your specific case and pallet dimensions.

Automating Load Planning

For production use, pallet patterns and container loading should live in your item master: every SKU carries its case dimensions, Ti×Hi (cases per layer × layers), and pallet weight, and every outbound order or inbound PO automatically computes pallet counts and vehicle requirements. I build warehouse and logistics tools that embed this math into WMS workflows, purchase order planning, and freight cost allocation. Learn about integration services, grocery merchandising support, or Ask James.