How many stamps to mail

To determine how many stamps you need to mail a letter, you'll need to consider the weight and size of the letter, as well as the destination. Here's a general guide:

Domestic Mail (within the United States)

• A standard letter (up to 1 oz) costs $0.55 and requires 1 Forever Stamp.
• A large envelope (up to 1 oz) costs $0.55 and requires 1 Forever Stamp.
• A medium-sized package (up to 13 oz) costs $3.50 and requires 1 First-Class Package Service stamp.
• A large package (over 13 oz) costs $13.50 and requires multiple First-Class Package Service stamps.

International Mail

• A standard letter (up to 1 oz) to Canada costs $1.20 and requires 1 Global Forever Stamp.
• A standard letter (up to 1 oz) to other countries costs $1.30 and requires 1 Global Forever Stamp.
• A large envelope (up to 1 oz) to Canada costs $2.30 and requires 2 Global Forever Stamps.
• A large envelope (up to 1 oz) to other countries costs $2.50 and requires 2 Global Forever Stamps.

Other Considerations

• If your letter weighs more than 1 oz, you'll need additional stamps to cover the extra weight.
• If you're mailing a package, you'll need to calculate the weight and size of the package to determine the correct postage.
• If you're mailing a letter to a military address, you may need to use a special military stamp or pay a higher rate.

To calculate the correct postage, you can use the USPS website's postage calculator or visit your local post office for assistance.