what is first class postage for letter

what is first class postage for letter refers to the cost of mailing a standard letter using USPS First Class Mail. The current price for a First Class Mail letter, as of 2025, is $0.66 for a letter weighing up to 1 ounce. Additional ounces cost more, and there are also options for sending larger envelopes or postcards. USPS First Class Mail is the most affordable option for mailing letters and documents within the U.S., with delivery typically taking 1 to 3 business days depending on the destination.