Package Validator

Check carrier eligibility, understand DIM weight calculations, and identify surcharges before you ship

Measuring Tips: Always round UP to the next whole inch. Length is the longest side, width is the second longest, height is the shortest.

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Package Validator

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Compare Carriers

See how UPS, FedEx, USPS, and DHL stack up

Learning Center

Understand dimensional weight and surcharges

Carrier Rules

Detailed surcharge lists for each carrier

Pro tip

Get official quotes from carrier websites after validation - we show rules, not prices.

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