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Free 3D box packing calculator

PackIt works out the most efficient way to pack parcels into your shipping boxes, so you use fewer boxes and waste less space. It's built by 211 Ltd for e-commerce sellers packing orders, wholesale shipments and Amazon FBA cartons.

How to use it

  1. Add your boxes — the internal length, width and height in cm, and how many you have (or leave quantity unlimited).
  2. Add your parcels — the size of each item. Tick the ↑ arrow on anything that must stay upright.
  3. Press Pack It — see each box in 3D with a numbered packing order and how full it is.
  4. Print or export — a packing sheet (or PDF) for whoever's packing, a picture of each box, or a CSV for your spreadsheet. Save the shipment to come back to it later.

FAQ

Is PackIt free?

Yes. PackIt is free to use with no sign-up.

How does PackIt work out the packing?

Enter the internal sizes of your boxes and the length, width and height of each parcel in centimetres, then press Pack It. It places the parcels into your boxes, rotating them to fit, and shows each box in 3D with a numbered packing order and how full it is.

Can I stop an item being turned on its side?

Yes. Tick the 'this way up' arrow on a parcel and PackIt keeps it upright.

Does it check Amazon FBA box limits?

It warns you when a box is over Amazon's 63.5 cm limit on any side.

Can I save a shipment for later?

Yes. Name a shipment and save it. It's stored in your browser on that device.

Can I print a packing sheet or export my plan?

Yes. Print / PDF makes a packing sheet with a 3D picture of each box and a numbered checklist of what goes in it. Choose "Save as PDF" in the print window to get a PDF. You can also save the 3D view as an image, and export or import your boxes and parcels as a CSV spreadsheet.

Can I import my product sizes from Amazon Seller Central?

Yes. Download the Fee Preview report from Seller Central (Reports → Fulfilment → Fee Preview) and import it under Amazon products. PackIt loads the size and weight Amazon has measured for each product, so you just pick quantities. It adds up each box's weight (including the cardboard), keeps every box under Amazon's 23 kg limit, puts heavy items at the bottom and tells you when a box needs a Heavy package label. The report stays on your device.

Does PackIt work on a phone?

Yes. On a phone you switch between the controls and the 3D view, and you can drag to rotate and pinch to zoom.

Made by 211 Ltd · also try Live Prompter, a free voice-following teleprompter for TikTok Shop lives.