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Shipping box calculator

Enter the item size and how many you're sending. The calculator finds the smallest box, adds padding and shows the dimensional weight.

Box to use (inside size)
26 × 20 × 28cm
Items packed 1 × 1 × 4
Outside size26.8 × 20.8 × 28.8 cmPacked weight, about2.26 kgDimensional weight3.21 kgBillable weight3.5 kg

How it works

The calculator tries every way of placing the items, in every orientation, and keeps the box with the least volume. Padding is added on all sides, then the board thickness for the outside size.

The packed weight includes a 3-ply box at about 540 g/m². Billable weight is the higher of packed and dimensional weight, rounded up to 0.5 kg.

Frequently asked questions

How do I choose the right shipping box?

Pick the smallest box that leaves room for padding on all sides. A box that is too big costs more to ship and lets the item move.

How much padding do fragile items need?

About 5 cm (2 in) on every side, with the item not touching the box walls.

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