Empty box weight calculator
Estimate how much an empty corrugated box weighs.
How it works
A box's weight is its board area times the board's basis weight (weight per square foot). The calculator uses the area of a regular slotted container blank and typical combined board weights: roughly 0.125 lb per sq ft for 32 ECT single wall, up to about 0.26 lb for heavy double wall.
Box weight matters more than people think. It adds to every parcel's actual weight and to pallet weights for freight. Mills vary, so weigh a sample if you need exact numbers. To see the total with product and fill, use the packed box weight calculator.
Results are estimates based on typical industry values. Confirm final specifications with your supplier or carrier.
Frequently asked questions
How much does an empty cardboard box weigh?
A 12 × 10 × 8 inch single wall box weighs about 0.5 lb (220 g). Double wall boxes of the same size weigh roughly 60% more.
Does box weight count toward shipping weight?
Yes. Carriers weigh the whole package, including the box, fill and tape.
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