What is the average cost of a Stamp? Price Range of a US Postage Stamp

This year, the standard cost of a stamp is $.44 for a normal letter. This can range up to a maximum of about $2.38 as postage for a fully stuffed envelope. In general, the weight and distance traveled of the item being sent is the prime determining factor in its cost. International mail, express mail, and other factors can increase the cost further.