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USPS Certified Mail Cost Calculator (2026)

Enter your ZIP codes and weight to estimate total Certified Mail cost, including base postage and optional add-ons.

Most 1-3 page letters weigh under 1 oz.

For a standard #10 envelope, choose 'Letter'.

Most Certified Mail uses First-Class Mail.

Certified Mail Options

Return Receipt provides proof of delivery. Restricted Delivery ensures only the addressee can receive the mail.

How this Certified Mail calculator works

This calculator gives you the option to calculate postage with optional Certified Mail add-ons. This is not the price of our service, but it should give you a good idea of what it costs to send Certified Mail at your local post office.

These prices are up to date as of 2026.