How Much are Postal Stamps?

How much you will spend on postage stamps depends on what you are mailing, the weight and how you would like to mail it. If you are mailing a one ounce letter then the cost is $0.44 for the first ounce and $0.17 for each additional ounce. Mailing a postcard is less expensive at only $0.28 each. Priority mail is $4.95 or more depending on weight and destination and for express the cost is $13.05 and up (starting at a half ounce).