Free packaging calculator

Dimensional weight calculator

See the dimensional (volumetric) weight carriers may bill for a box, and whether a smaller box would ship cheaper.

Outside box size (in): length × width × height
Dimensional weight5 lb648 cubic inches ÷ 139. Carriers usually bill the higher of dimensional and actual weight: 5 lb.

Each carrier sets its own divisor and rounding rules; check your carrier's current rates. A box that fits closer to your product can lower the dimensional weight.

FAQ

Questions

What is dimensional weight?

A billing weight based on the box’s outside cubic size: length × width × height divided by the carrier’s divisor. Carriers usually charge whichever is higher: dimensional weight or actual scale weight.

Which divisor should I use?

Your carrier sets it, and it can differ by service and account. 139 is a common US domestic commercial divisor; check your carrier’s current rate guide.

Still have a question? Ask a packaging specialist.

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<iframe src="https://cubitpack.com/tools/dimensional-weight-calculator" width="100%" height="620" style="border:1px solid #e2e4ea;border-radius:12px;background:#fff;" loading="lazy" title="CubitPack Free Dimensional weight calculator"></iframe>
<p style="font-size:12px;color:#555;margin-top:6px;">Free tool by <a href="https://cubitpack.com/tools/dimensional-weight-calculator">CubitPack Dimensional weight calculator</a> &middot; <a href="https://cubitpack.com/boxes">Custom Boxes</a></p>
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