GetShipMargin
PackagingVerified formula

Smart Box Finder

Compare usable box configurations and minimize empty volume.

Free · no sign-up
Package inputs
Use outside package dimensions. Your result stays on this device unless you choose to save it.

Product dimensions (in)

Live result Deterministic
Shipping intelligence
No AI estimates. Every output comes from the published formula.

Your result will appear here

Enter package data and calculate. No account is required.

How to use this tool

A decision, not just an output

Find the smallest demo box that fits a product with padding and rotation. Read the output alongside its interpretation, assumptions, limitations, and source. Marketplace rates and external requirements should always be confirmed at the linked official source.

Formula & example

Transparent method

Every allowed axis-aligned orientation is tested and fitting demo boxes are ranked by unused volume.

Example: A 7 × 5 × 3 in product with 0.25 in padding fits the 9 × 6 × 4 in demo mailer.

Assumptions

  • • Demo box dimensions are inside dimensions.
  • • Padding applies to every face.

Limitations

  • • Demo boxes are illustrative and do not represent supplier inventory.
  • • No dollar saving is claimed.

Frequently asked questions

Is the Smart Box Finder free?

Yes. The primary result is available without creating an account or entering an email address.

How is the result calculated?

Every allowed axis-aligned orientation is tested and fitting demo boxes are ranked by unused volume.

What should I verify before using it?

Demo boxes are illustrative and do not represent supplier inventory. No dollar saving is claimed.

Are my inputs private?

Core inputs are processed in your browser. GetShipMargin Tools records anonymous interaction events, not the business values entered into this form.