How big is a 3-inch photo?

3-inch photo size: 8.9cm x 6cm. 0.6 mm wider than the ID card. The size of the photo is in inches, 1 inch =2.54cm, and usually x inches refers to the inch length of the long side of the photo. For example, 5 inches means that the photo length is 2.54x5 =12.7cm; 12 inch means that the length of the photo is 2.54x 12 = 30.5cm ... There is also a common method to express the size of the photo in the world, which is to take the integer value of the short side of the photo and add the letter R to represent it.

Extended data:

1, ID card: 22mm*32mm

2. Driver's license: 22mm*32mm

3. Passport: 33mm * 48mm)

4. Second generation ID card: 26 mm * 32 mm

5. Ordinary ID photo: 33mm*48mm

6. Car photo: 60mm*9 1

7. "inch" is usually used to represent the specifications of photos, which is different from the diagonal length of products such as monitors. "A few inches" in the photo refers to the length of inches on the long side of the photo. For example, a 6-inch photo is a 6×4-inch photo.

References:

Baidu encyclopedia-photo size