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Rate calculators provide quick and accurate information on the cost of mailing packages with USPS.
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Domestic Rate Calculator
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This Web Tool allows e-shoppers to calculate how much domestic shipping will cost by Express Mail®, Priority Mail®, First-Class Mail, Parcel Post®, Media Mail, and/or Library Mail.
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International Rate Calculator
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This rate calculator will provide e-shoppers information on international rates for Global Express Guaranteed®, Express Mail International®, Priority Mail® International, and First-Class Mail® International. Unique mailing restrictions are provided for each country along with declarations form information and Express Mail International® delivery areas.
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Technical Guides
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Download instructional guides to learn more.
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Service Providers
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Need assistance with integrating? Use a service provider.
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Register now to begin using the USPS Web Tools.
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Register now to begin using the USPS Web Tools.
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