Check box capacity, item rotation, space use, and fit limits. Plan smarter packing with clear results today.
Maximum Items
Best Orientation
Space Used
| Orientation | Item Dimensions | Length Count | Width Count | Height Count | Total Fit |
|---|---|---|---|---|---|
| Submit the form to compare all rotations. | |||||
| Box Size | Item Size | Best Fit | Use Case |
|---|---|---|---|
| 24 × 16 × 12 in | 6 × 4 × 3 in | 64 items | Retail cartons |
| 40 × 30 × 25 cm | 10 × 5 × 5 cm | 120 items | Small parcels |
| 60 × 40 × 40 cm | 15 × 10 × 8 cm | 80 items | Warehouse bins |
The calculator checks every practical item rotation. Each rotation places item length, width, and height against the box length, width, and height.
Fit along length = floor(Box Length ÷ Item Length)
Fit along width = floor(Box Width ÷ Item Width)
Fit along height = floor(Box Height ÷ Item Height)
Total fit = Length Count × Width Count × Height Count
Used volume percentage = (Total Item Volume ÷ Box Volume) × 100
A packing loss percentage can be applied for padding, air gaps, irregular shapes, labels, wrapping, or handling space. This gives a more realistic capacity estimate.
Enter the inside dimensions of the box first. Use the same unit for every value. Then enter the outside dimensions of one item. The item size should include any wrapping, sleeve, pouch, bubble layer, or retail package.
Add an efficiency loss if your packing is not perfectly tight. A zero value means the calculator assumes clean rectangular packing. A value like ten percent gives a more cautious estimate.
Press the calculate button. The result appears above the form and below the header. You will see the maximum item count, best rotation, volume use, and remaining space. The orientation table shows each tested rotation.
Use the CSV button for spreadsheet records. Use the PDF button for reports, quotes, warehouse notes, or shipping documentation.
Box packing affects shipping cost, storage space, and order accuracy. A small mistake can increase carton count. It can also create loose movement inside the package. This calculator gives a fast estimate before packing starts.
Always measure the usable inner space of the box. Outer box dimensions can be larger because of wall thickness. Inner measurements give a more accurate result. This matters for rigid items and tight cartons.
Rectangular products may fit better when rotated. One position may waste height. Another position may create more rows. This tool checks six rotations and chooses the highest count. That saves time during manual planning.
Perfect packing is not always possible. Items may need padding, separators, bags, or labels. Fragile products need extra space. Heavy products may need fewer layers. Use the loss field to reduce the final quantity.
A box may have enough total volume, but an item can still fail to fit. Length, width, and height must each fit correctly. This is why dimensional checks are more useful than volume-only estimates.
Use the result for carton planning, ecommerce shipping, storage bins, moving boxes, stockroom layout, and packaging quotes. The answer is an estimate. Test one real box when the order is important.
It estimates how many rectangular items can fit inside a rectangular box using dimension checks and item rotation comparisons.
Use inside box dimensions. They show the real usable space available for packing items safely and accurately.
Yes. It checks six item orientations and selects the option that gives the highest fit count.
It reduces the final count for padding, gaps, dividers, labels, wrapping, or imperfect real-world packing.
No. The calculator checks length, width, and height separately. Volume alone can give a misleading answer.
Yes. You can use any listed unit. Just keep the same unit for both box and item dimensions.
Yes. It helps estimate carton capacity, reduce wasted space, and compare package choices before shipping.
Real packing may include rounded edges, soft packaging, labels, padding, or box wall variation. Always test critical shipments.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.