Pallet Calculator
Created by: Daniel Hayes
Last updated:
Plan uniform carton layouts, weight-limited pallet capacity, shipment pallet counts and the final partial pallet with a layer diagram.
Pallet Calculator
Packaging & Pallet PlanningUse measured inputs and review the assumptions before saving your plan.
Uniform upright grids only, with no overhang. A partial top layer is allowed for the quantity estimate; confirm carton stacking strength, load stability and pallet ratings separately.
Starting carton sizes, costs and operating limits are illustrative. Container presets are editable Hapag-Lloyd equipment examples. Replace these with your measurements and applicable specifications.
What does this pallet calculator show?
A pallet calculator estimates how many identical upright cartons fit on a pallet and how many pallets an order requires. This tool compares permitted uniform floor rotations, applies loaded-height, gross-weight and carton-layer limits, and reports a possible final remainder pallet. The layer drawing shows the selected footprint arrangement with no carton overhang.
The basic planning problem has three different constraints. Carton footprints must fit on the usable deck, the stacked cartons and pallet must fit below a total height limit, and the combined mass must stay within the entered gross-weight limit. A carton’s permitted stacking layers can impose an additional lower limit, even when physical headroom remains available.
This calculator accepts packed outside dimensions and packed carton weight. Empty pallet height and weight are entered separately because they consume part of the loaded allowance. Maximum gross weight means pallet plus cartons; if your source gives cargo payload instead, add the pallet tare to express an equivalent gross limit, then check any lower receiver or transport restriction.
Shipment planning can leave a partly occupied top layer. The calculator permits that for capacity estimates and shows the number of cartons beyond the complete layers. This makes it useful for distributing an order across pallets, while the separate TI/HI tool is better for defining a repeatable pattern consisting entirely of full layers. Neither tool chooses physical restraint or certifies a load.
Uniform grids are deliberately easy to inspect. Every carton in a layer faces the same way; allowing floor rotation tests the two upright alternatives. Mixed orientations, pinwheel patterns and overhang could produce different capacities, but they require a different packing method. The selected arrangement is the best of the tested grids, not a claim that no other arrangement could carry more cartons.
Uniform upright grids only, with no overhang. A partial top layer is allowed for the quantity estimate; confirm carton stacking strength, load stability and pallet ratings separately.
Method and calculation
For each permitted upright orientation, the calculator counts whole cartons along the pallet’s length and width. Those counts form TI, the number of positions in a complete layer. Cartons cannot extend beyond either deck boundary. The available carton stack height is the maximum loaded height minus the empty pallet height; division by carton height gives the number of whole layers that physically fit.
The entered maximum carton-layer count can reduce that height-based result. Separately, subtracting empty pallet weight from maximum gross weight gives the mass available for cartons. Dividing by packed carton weight and rounding down gives a whole-carton weight capacity. Each grid’s final capacity is the lower of its geometric stack capacity and weight capacity; a partial top layer is permitted.
The selected grid carries the most cartons among the tested alternatives. Ties prefer the grid carrying more cartons in complete layers. Shipment quantity is divided by this capacity: whole capacity pallets are counted first, and any remaining cartons need one additional pallet. The remainder’s height and gross weight are calculated from its own carton count rather than copied from a full pallet.
Formula or lookup rule
TI = floor(deck length / carton length) × floor(deck width / carton width); height layers = min(floor((maximum height − pallet height) / carton height), permitted layers); carton capacity = min(TI × height layers, floor((maximum gross − pallet weight) / carton weight)); pallets = ceil(order quantity / capacity).
- Measure cartons and pallet: Enter packed carton sizes and weight, usable pallet deck dimensions, and empty pallet height and weight.
- Enter operating constraints: Confirm maximum loaded height, gross weight and the permitted carton-layer count.
- Set rotation and shipment quantity: Permit only valid upright rotations and enter the whole carton order quantity.
- Review the load plan: Compare grids, check capacity and remainder pallets, and save the diagram with its assumptions.
Worked examples
A 100-carton shipment
Use 40 × 30 × 25-centimeter cartons weighing 11 kilograms, a 120 × 80-centimeter deck, a 14.4-centimeter pallet weighing 25 kilograms, and a 160-centimeter loaded-height limit. Permit five carton layers and a 1000-kilogram gross limit. Rotating the upright carton gives four along and two across, or eight per layer. Five layers carry 40 cartons at 139.4 centimeters high and 465 kilograms gross. An order of 100 cartons uses two 40-carton pallets and one 20-carton remainder pallet, for three pallets altogether.
A weight-limited partial top layer
Keep the same dimensions but reduce maximum gross weight to 400 kilograms. The pallet leaves 375 kilograms for cartons; 34 cartons at 11 kilograms fit within that allowance. Four complete eight-carton layers carry 32 cartons, followed by two cartons in a partial top layer. The capacity pallet is 139.4 centimeters high and weighs 399 kilograms gross. This quantity fits the entered arithmetic limits, but the two-carton top layer requires a physical placement and restraint decision before shipment. TI/HI instead reports only complete layers.
The last pallet has its own dimensions
Return to 40-carton capacity and ship 81 cartons. Two capacity pallets carry 80 cartons, leaving one carton on a third pallet. Its height is 14.4 + 25 = 39.4 centimeters and its gross weight is 25 + 11 = 36 kilograms. Recording the remainder avoids treating all three pallets as fully built in later planning. Actual placement on that lightly loaded pallet is not prescribed by the top-view diagram, which displays a complete geometric layer of the selected orientation.
Practical applications
- Plan an outbound order: Translate a whole carton quantity into capacity pallets and one possible remainder. This gives a starting pallet count for booking and warehouse staging while preserving the measurements and constraints that produced it.
- Check a receiver’s limits: Use the receiver’s maximum loaded height and gross weight, together with your pallet and carton data. Recalculate when the destination changes; a pattern suitable for one customer may need a lower stack elsewhere.
- Compare upright floor rotations: Allow the second rotation when product orientation permits it. The chart and table show capacities for both uniform grids, and the drawing makes unused deck space visible without silently introducing mixed carton arrangements.
- Estimate handling quantities: Use the pallet count to plan staging positions, labels or handling activities. Keep those operational costs in a separate calculation; this tool does not assume a warehouse rate, vehicle capacity or loading-time coefficient.
- Inspect a packaging change: Run measured samples of a revised carton in separate scenarios. A small footprint change may alter whole-carton counts abruptly. Compare the saved layouts and check whether the revised carton’s strength and permitted layers also changed.
- Record partial-pallet details: Export the final remainder count, height and weight with the selected grid. These values can support a packing record, but the actual placement, restraint and labeling of a partial load still require an operational plan.
Tips for useful results
Use outside packed dimensions and the actual pallet deck available to the cartons. Include pallet tare in maximum gross weight and pallet height in maximum loaded height. Do not substitute a payload number without converting its meaning. Check the most restrictive applicable receiver, pallet, handling and transport requirements before entering the limits.
Treat the maximum carton-layer field as a specification you supply, not a strength prediction. Leave product height fixed unless upright floor rotation is genuinely permitted. The diagram helps review geometry; it does not prescribe stretch wrap, edge protection or a partial-layer restraint method. If a known mixed pattern carries more cartons, use a planner that explicitly models that arrangement.
Frequently asked questions
How many boxes fit on a pallet?
The answer depends on usable deck dimensions, packed carton dimensions, carton weight and operating constraints. Count whole cartons along and across a permitted orientation, then apply height, layer and weight caps. This calculator compares uniform upright grids and reports the highest tested capacity. It also shows a remainder pallet when your shipment does not divide evenly by that capacity.
Does this calculator include pallet weight and height?
Yes. Empty pallet height is subtracted from the total loaded-height allowance before counting carton layers. Empty pallet weight is subtracted from maximum gross weight before counting cartons by mass. Enter gross limits that include the pallet. If your documentation instead specifies cargo payload, convert that meaning carefully and check whether another lower gross or handling limit applies.
Can the last layer be partially filled?
Yes, in the pallet shipment planner. A weight cap can allow several cartons beyond the last complete layer, and an order remainder can also produce a partial layer. The result reports those quantities without choosing their physical restraint. Use TI/HI Calculator when you need a standardized full-layer pattern, and confirm partial-load placement and securement separately before dispatch.
Does the selected grid give the maximum possible capacity?
It gives the highest capacity among the uniform upright grids that were tested. Mixed rotations, interlocked layers, pinwheel layouts and permitted overhang can produce different answers and are outside this model. The comparison table makes the search scope visible. Treat the result as a reproducible grid estimate rather than a proof of globally optimal carton packing.
What does the maximum permitted layer count mean?
It is a whole-layer limit supplied by you from carton, product or operating specifications. The calculator combines it with physical headroom and gross-weight limits, using whichever constraints reduce the load. It does not infer compressive strength from carton dimensions. Replace the example value with a documented limit, especially when humidity, storage duration or product support affects stacking performance.
How is the final remainder pallet calculated?
After allocating whole capacity pallets, the calculator places the remaining carton count on one additional pallet. Its height uses the number of occupied layers rounded upward, plus empty pallet height. Its gross weight is remaining cartons times packed weight plus pallet tare. If the order divides exactly, the remainder count is zero and no extra pallet is required.
Sources and references
- Cargo-Planner: Ti-Hi and pallet stacking patterns. Updated September 29, 2026. Section: Uniform-grid cases per layer and constrained layer counts. Accessed 2026-10-14. Practitioner reference for rectangular layer arithmetic and TI/HI. This implementation tests uniform grids only; it does not reproduce mixed, brick or interlocked packing.
- NIST: Guide to the SI, Appendix B.8. SP 811 online conversion table. Section: Inch, foot and avoirdupois pound entries. Accessed 2026-10-14. Supports length and mass conversions. Unit changes preserve measurements; they do not select a carrier tariff.