What is postage for a letter us to us?

As of my last update, the postage for a standard letter sent within the United States is typically 63 cents for a First-Class Mail stamp. This rate applies to letters weighing up to one ounce. Additional weight or special services, such as tracking or insurance, may incur extra charges. It's always best to check the United States Postal Service (USPS) website for the most current rates and regulations.