USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance.

Learn how to use USPS to send letters from the U.S. to other countries: What you can send, how to write addresses, ways to buy postage, and more.

First-Class Mail is a fast, low-cost way to send envelopes and postcards. See First-Class Mail and Forever stamp prices for a letter and postcard.

Before you move, get a copy of the Mover’s Guide from your Post Office and return the completed form to your letter carrier or your Post Office. You can also save a trip to the Post Office by visiting …

First-Class Mail International is a fast, low-cost way to ship lightweight packages and letters internationally. USPS sends mail to over 180 countries, including Canada and Australia. See delivery …

You can only send certain types of media: If you try to include anything that's not allowed, you (or your recipient) will have to pay higher postage rates. All Media Mail packages are subject to opening and …

If you send mail on a Saturday or the day before a holiday, the Sunday or holiday is not included in the expected delivery time. If you send mail with a 3-day service standard on Friday, the expected …

International Choosing a Service for Mailing Adding Extra Services Examples of Smart Choices Addressing Your Mail Preparing Packages Tips and Tools for Measuring Letters and Large …

Cost of First-Class™ Stamps Letter Stamps Standard-sized, rectangular envelopes From $0.78 Square, Oversized, or Unusual Envelopes From $1.27 Postcard Stamps Standard-sized, rectangular …