How many stamps do you need for first class mail

The number of stamps needed for First Class Mail in the United States depends on the weight and size of the mailpiece. Here are the current rates and requirements:

Letters (1 oz or less)

• 1 stamp (currently $0.55) for a standard letter (up to 1 oz)

Large Envelopes (1 oz or less)

• 1 stamp (currently $0.55) for a large envelope (up to 1 oz)

Packets and Flat Rate Envelopes

• 1 stamp (currently $0.55) for a flat rate envelope (up to 1 oz)
• 2 stamps (currently $1.10) for a flat rate envelope (over 1 oz)

Packages (over 1 oz)

• Calculate the weight of the package in ounces and add $0.15 for each additional ounce (up to 13 oz)
• For example, a 2 oz package would require 2 stamps (currently $1.10) + $0.15 = 2.25 stamps

International Mail

• Rates vary depending on the destination and weight of the mailpiece. You can use the USPS International Mail Calculator to determine the cost.

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.

I hope that helps!