How much for a stamped envelope?

The cost of a stamped envelope typically depends on the current postage rates set by the postal service. In the United States, as of 2023, a standard first-class letter stamp costs 66 cents. If you're looking for a stamped envelope specifically, prices may vary based on size and type, but you can usually find them pre-stamped at that rate for a standard letter. Always check with your local postal service for the most accurate and up-to-date pricing.