What are the standard sizes of 1-inch and 2-inch ID photos? (inch)

1 inch: inch: 1*1.5, corresponding centimeter: 2.5*3.5, generally used for ID photos.

2 inches: inches: 1.5*2?, corresponding centimeters:? 3.5*4.9, generally a standard 2-inch photo.

The size of the photo is measured in inches, 1 inch = 2.54cm. Usually the X inch refers to the length of the long side of the photo in inches. For example: 5 inches means the photo is 2.54x5=12.7cm long; 12 inches means the photo is 2.54x12=30.5cm long.

Extended information:

ID cards, physical examination forms, etc. mostly use a smaller size of 22×32mm;

The second generation ID card is 26mm×32mm;

An ordinary one-inch photo is 25mm×35mm;

The standard photo size of a passport travel document photo is: 48mm×33mm, the width of the head is 21mm~24mm, and the length of the head is 28mm~33mm).

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Reference: Photo Size-Baidu Encyclopedia