How much is a stamp cost to mail a letter

The cost of a stamp to mail a letter in the United States varies depending on the weight and size of the letter, as well as the destination. Here are the current rates for mailing a letter in the United States:

First-Class Mail Letters

• 1 oz (standard letter): $0.55
• 2 oz: $0.70
• 3 oz: $0.85
• 3.5 oz: $1.00

Additional Ounces

• Each additional ounce: $0.15

International Mail

• 1 oz (standard letter): $1.20 to Canada, $1.30 to Mexico, and $1.90 to other countries
• Additional ounces: $0.20 each

Priority Mail

• Small flat rate envelope: $7.50
• Medium flat rate envelope: $13.75
• Large flat rate envelope: $19.75

Priority Mail International

• Small flat rate envelope: $24.95 to Canada, $26.95 to Mexico, and $29.95 to other countries
• Medium flat rate envelope: $34.95 to Canada, $36.95 to Mexico, and $39.95 to other countries
• Large flat rate envelope: $44.95 to Canada, $46.95 to Mexico, and $49.95 to other countries

Note: These rates are subject to change, so it's always a good idea to check the official website of the United States Postal Service (USPS) for the most up-to-date information.

I hope that helps!