How much per ounce for first class mail

The cost of First Class Mail in the United States varies depending on the weight and size of the mailpiece. Here are the current rates for First Class Mail as of 2022:

Letters (1 oz or less)

• Domestic: $0.55 per piece
• International: $1.20 per piece (to Canada) or $1.30 per piece (to other countries)

Large Envelopes (1 oz or less)

• Domestic: $0.92 per piece
• International: $1.45 per piece (to Canada) or $1.55 per piece (to other countries)

Packets (1 oz or less)

• Domestic: $1.00 per piece
• International: $1.65 per piece (to Canada) or $1.75 per piece (to other countries)

Additional Ounces

• Each additional ounce: $0.15 per ounce (domestic) or $0.20 per ounce (international)

For example, if you have a letter that weighs 2 ounces, the cost would be:

• Domestic: $0.55 (1 oz) + $0.15 (1 oz) = $0.70
• International: $1.20 (1 oz) + $0.20 (1 oz) = $1.40

Keep in mind that these rates are subject to change, so it's always a good idea to check the official USPS website for the most up-to-date rates.