Packing calculator

Carton Fit Calculator

Test all six axis-aligned rotations of an item and find the arrangement that fits the highest whole-number quantity inside a carton.

CostFree

AccountNot required

ResultUpdates live

Your shipment details

Updates live

Example values are filled inReplace them with your measurements or costs

The calculator applies the formula and unit conversion automatically.

Carton length

Carton width

Carton height

Item length

Item width

Item height

Several shipments to calculate?

Use the $19 operations workbook for batch work.

Compare quotes and keep landed cost, pallet plans, DIM checks, and margin calculations in one editable Excel file.

See the workbook ↗

Method & limits

How this estimate works

The result uses the formula below. Check the measurements, unit setting, and applicable carrier or supplier rule before using it.

Fit count = floor(box L ÷ item L) × floor(box W ÷ item W) × floor(box H ÷ item H)

The estimate assumes rectangular items, straight rows, no nesting, no deformation, and no clearance or protective material.

This calculator is a planning aid, not a carrier quotation, engineering assessment, or professional advice. Verify critical figures against current supplier and carrier documentation.

Examples and guides

7 minChoose a master carton size with fewer guesses ↗

Move from product dimensions to a testable carton specification and avoid paying for unused cube.

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Carton Fit Calculator

Your shipment details

Use the $19 operations workbook for batch work.

How this estimate works

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