Question: how many pictures can you send with one stamp?
Answer: Add correct postage Add the correct postage based on your number of photos. You can send 5 photos with 1 first-class stamp ($0.55). 7 photos will need 1 stamp plus an additional ounce stamp as it's just over the 1 ounce limit for a single stamp. 15 stamps uses the same amount of postage as a 7-photo envelope.