USPS rates can vary significantly depending on the size, weight, and destination of the item being mailed or shipped, as well as the service used. The following are some basic rates (as of 2023) for common USPS services:

  • First-Class Mail Letter (1 oz., metered): $0.66
  • First-Class Mail Letter (1 oz., not metered): $0.63
  • First-Class Mail Flat (1 oz.): $1.35
  • First-Class Mail Postcard: $0.51
  • Priority Mail (Flat rate envelope): $9.65
  • Priority Mail Express (Flat rate envelope): $28.75
  • Media Mail (1 lb.): $3.92

Please note that these are general rates and actual costs may vary based on a variety of factors. Additional services like Registered Mail, Certified Mail, insurance, and others also come with additional fees.

Learn more

To learn more about USPS postal rates on, follow these detailed steps:

  • 1. Open your preferred web browser and navigate to the official United States Postal Service (USPS) website at
  • 2. Once you are on the homepage, locate the “Quick Tools” section, which is typically found in the top left corner of the screen. This section contains a list of commonly used tools and services provided by USPS.
  • 3. In the “Quick Tools” section, click on the “Calculate a Price” option. This will direct you to a new page where you can calculate the cost of shipping a package or letter based on various factors, such as destination, weight, and mail class.
  • 4. On the “Calculate a Price” page, you will find several input fields and dropdown menus that will help you determine the postal rates for your specific mailing needs. Begin by selecting the “From” and “To” fields to input the origin and destination ZIP Codes or addresses for your shipment.
  • 5. Next, choose the “Date & Time” of when you plan to ship your item. This information will help USPS determine the most accurate shipping rates and delivery times for your package.
  • 6. In the “What’s the Value of the Item being Mailed?” field, enter the estimated value of the item you are shipping. This information is used to calculate insurance costs, if applicable.
  • 7. Now, select the “Shape” of your package from the dropdown menu. Options include “Letter,” “Large Envelope,” “Package,” and “Large Package.” The shape you choose will affect the available mail classes and shipping rates.
  • 8. Based on the shape you selected, you may need to provide additional information, such as the weight of your package. Enter the required details in the appropriate fields.
  • 9. Once you have provided all the necessary information, click the “Continue” button to view the available shipping options and their corresponding rates. The results will display various mail classes, such as Priority Mail, First-Class Mail, and Media Mail, along with their estimated delivery times and costs.
  • 10. Review the displayed postal rates and select the most suitable option for your mailing needs. You can also click on each mail class for more information about its features and restrictions.

By following these steps, you can easily learn more about USPS postal rates and make informed decisions when shipping items through the United States Postal Service.

Additional resources

The Federal Register, managed by the National Archives and Records Administration, is another resource that may contain relevant information on postal rates. This daily publication includes proposed and final rules, as well as notices from federal agencies, such as the USPS. By searching the Federal Register, users can find updates on postal rate changes and related regulations.

The Postal Regulatory Commission (PRC) is an independent federal agency responsible for overseeing the USPS’s rates, services, and operations. The PRC website provides access to reports, orders, and other documents related to postal rate adjustments and service standards. Users can also find information on the PRC’s role in reviewing and approving proposed rate changes.

Our articles make government information more accessible. Please consult a qualified professional for financial, legal, or health advice specific to your circumstances.

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