Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need …

Set Package Tracking Notifications Turn on package tracking notifications and you’ll automatically get text and/or email alerts with the status of your package and delivery details.

Learn how to ship a package with USPS, from choosing the right mail service, packing your box, writing the address, calculating postage, and scheduling a pickup.

If a package qualifies for the USPS Delivery Instructions™ service, you can tell USPS where to leave a package at your address, send it to a different address, or send it to your Post Office.

If you're dealing with a lost package or mailpiece, USPS can help with a Missing Mail Search. Learn how to find lost mail, file claims, and request refunds.

Prepare Your Package Get tips on how to pack your box, choose a mail service, and add enough postage so your package arrives on time.

Other USPS Sites Business Customer Gateway Postal Inspectors Inspector General Postal Explorer National Postal Museum Resources for Developers PostalPro

Track USPS package deliveries, get tracking text and email notifications, forward mail, change your address, and learn about setting up PO boxes or home mailboxes.

You’ll need to measure your package to make sure it meets the size standards. Maximum combined length and girth (girth is the distance around the thickest part) is 108 inches.

Learn how to stop package delivery or redirect mail with USPS Package Intercept for retail customers and businesses.