How much to mail a first class letter in us

As of 2023, the cost to mail a First-Class Letter in the United States is:

Note that these prices apply to letters that weigh up to 3.5 oz. If your letter weighs more than 3.5 oz, you'll need to use a larger envelope or a different type of mail service, such as Priority Mail.

It's also worth noting that prices may vary depending on where you're mailing the letter from and where it's going to. For example, if you're mailing a letter from a post office in a rural area, the price may be slightly higher than if you were mailing it from a post office in a city.

You can check the current prices for mailing a First-Class Letter on the United States Postal Service (USPS) website or at your local post office.