What size photo do you need for a Japan visa?
Japan’s own application form has a box for a 45 x 35 mm photo, or 2 x 1.4 inches. Japanese missions in the U.S. also take a square 2 x 2 inch print: the Embassy in Washington lists only that size, and the New York consulate accepts a standard U.S. passport-size photo.
For the 35 x 45 mm format, the Denver consulate gives the head height: 32 to 36 mm from the top of the head to the chin. The other offices do not state a head size.
Sources: mofa.go.jp · us.emb-japan.go.jp · ny.us.emb-japan.go.jp · denver.us.emb-japan.go.jp
