Items per Carton Calculator
Evaluate six orthogonal orientations of identical rectangular envelopes. Include required protection in each item envelope. Mixed patterns can fit more items; this is a uniform-grid result.
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Replace the example values with figures from your supplier sheet or measurements. Choose the unit beside each value. Results update as you type; fix any highlighted field before using the result.
GSM means grams per square metre. Net weight excludes the core and other packaging. MOQ means the minimum order quantity. An optional field can stay blank unless the result you need depends on it.
Prices keep the selected currency; changing its label does not convert an exchange rate. Save or export the result after checking your inputs.
Best uniform-grid count
Count = max of six uniform-grid orientations: floor(L/x) × floor(W/y) × floor(H/z)
l = 400; w = 300; h = 200; x = 120; y = 80; z = 50 → Best uniform-grid count = 40 units; Envelope volume utilisation = 80 %Saved calculations stay in this browser. No account or cloud backup is created.
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Calculated from your inputs. Confirm specifications with your supplier.
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The formula, made clear.
Evaluate six orthogonal orientations of identical rectangular envelopes. Include required protection in each item envelope. Mixed patterns can fit more items; this is a uniform-grid result.
How to use this calculator
- 01
Confirm internal carton length, internal carton width, internal carton height, item envelope length, item envelope width, item envelope height.
- 02
Enter consistent units; zero means a confirmed absence of a charge or allowance.
- 03
Review the arithmetic, rounding and limitations before using the result in a purchasing decision.
A calculation you can check
A 400 × 300 × 200 mm carton fits 40 envelopes of 120 × 80 × 50 mm in its best uniform grid.
- Internal carton length
- 400 mm
- Internal carton width
- 300 mm
- Internal carton height
- 200 mm
- Item envelope length
- 120 mm
- Item envelope width
- 80 mm
- Item envelope height
- 50 mm
l = 400; w = 300; h = 200; x = 120; y = 80; z = 50 → Best uniform-grid count = 40 units; Envelope volume utilisation = 80 %Check the displayed formula and units against your quotation. Use measured GSM, net weight and actual layout dimensions where available. Default densities are planning assumptions, not certified material properties. Calculated cost does not certify strength, compatibility or safe loading.
Method, units and material assumptions ↗