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Shipping Cost Estimator

Estimate shipping costs including dimensional weight

Carrier rate (enter your actual negotiated/published rate)

Base rate ($)

Per lb ($)

Actual weight (lb)

Dimensional weight (box size)

L (in)

W (in)

H (in)

Dim divisor (139 is common for domestic US; carriers vary — check yours)

Packaging cost ($)

Markup to charge customer (%)

Dimensional weight

3.11 lb

Billable weight (greater of actual vs. dim)

3.11 lb

Your total shipping cost

$7.83

Suggested charge to customer

$7.83

What is this tool?

Estimates shipping costs including dimensional weight — the box-size-based charge that catches many sellers off guard, since carriers charge based on whichever is greater: actual weight or dimensional weight.

How to use it

Enter your carrier rate, package weight, and dimensions, and both the dimensional weight and total estimated shipping cost are calculated.

A large, lightweight box can cost more to ship than a small, heavy one because of dimensional weight — using appropriately-sized packaging is a real, ongoing cost lever for anyone shipping regularly.

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