A wallet size photo is typically 2" x 3". This size will fit in most traditional leather wallets with a photo slot. However, it is worth noting that some sources suggest the photo industry standard dimensions for wallet size photos is 2.5 x 3.5. It is important to consider the size of the wallet when choosing a photo to carry, as a 5 x 7 photo will not fit in virtually any wallet. Professional quality wallet prints are also available in different sizes, including 2.5" x 3.5", 2 5/16" x 3 5/16", and 2.5" x 1.75".