How many stamps for usa mail

The number of stamps needed for USA mail depends on the weight and size of the mailpiece, as well as the destination. Here are the current rates for First-Class Mail, which is the most common type of mail:

Letters (1 oz or less)

Large Envelopes (1 oz or less)

Packages (over 1 oz)

Other Mail Types

Note: These rates are subject to change, so it's always a good idea to check the USPS website for the most up-to-date information.

Remember, you can also use Forever Stamps, which are valid for First-Class Mail 1-ounce letters regardless of future price increases.