What is the size of ordinary photo paper?

Most photos of ordinary specifications are 5 inches, and the size is 8.5 *12.5cm. ..

Photo paper type:

At present, there are six kinds of photographic paper: high-gloss photographic paper, textured paper, sub-high-gloss photographic paper, professional photographic paper, matte photographic paper, adhesive-backed photographic paper and so on.

High-gloss photographic paper is commonly used in families, and self-adhesive photographic paper is used for photo pasting. At present, there are some packaged photographic papers on the market, which are produced in cooperation with dry printers. Dimensions are: 17'X30m, 18'X30m, 24'X30m, 42'X30m, 44'X30m.