GetShipMargin
PackagingVerified formula

Will It Fit?

Check whether a product can fit inside a box with padding and optional rotation.

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)

Box inside 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

Test all dimension permutations and approximate multi-item grid capacity. 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

Capacity = floor(box L ÷ item L) × floor(box W ÷ item W) × floor(box H ÷ item H), evaluated across allowed rotations.

Example: A 10 × 6 × 4 in product can rotate into a 6 × 10 × 5 in box.

Assumptions

  • • Items are rigid rectangular cuboids.
  • • Padding is uniform.

Limitations

  • • Multi-item fit is an approximate grid arrangement, not exact 3D bin packing.

Frequently asked questions

Is the Will It Fit? free?

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

How is the result calculated?

Capacity = floor(box L ÷ item L) × floor(box W ÷ item W) × floor(box H ÷ item H), evaluated across allowed rotations.

What should I verify before using it?

Multi-item fit is an approximate grid arrangement, not exact 3D bin packing.

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.