The size is 16:9.

Size cannot explain the pixel size of a picture. A photo with the size of 16: 9 indicates that the ratio of long side to short side is 16: 9, regardless of the number of pixels in the photo. For example, it can be a small photo with long side 160 pixels and short side 90 pixels, or a photo with long side 32 million pixels and short side 188 pixels.

There are three common proportions of pictures, the most commonly used is 4: 3, which is also the most traditional photo size, and many mobile phones have default sizes; The second type is 16: 9, which will be longer and more suitable for horizontal composition; The third is 1: 1, which is a comparison of literature and art. This size is more suitable for mobile internet reading, because when many platforms send multiple pictures, the preview effect is square.

Common photo size

1, 1 inch photo size: 2.5cm*3.5cm, 4 13*295.

2. ID photo size: 3.3cm*2.2cm, 390*260.

3.2 inch photo size: 3.5cm*5.3cm, 626*4 13.

4, 2 inches smaller (passport) photo size: 4.8cm*3.3cm, 567*390.

5.5-inch photo size: 5 × 3.5, 12.7cm*8.9cm, 1200x840 or more,10.000 million pixels.

6.6-inch photo size: 6x4, 15.2cm* 10.2cm, 1440x960+0.3 million pixels.

8. 7-inch photo size: 7x5, 17.8cm * 12.7cm,1680x1200+2 million pixels.

8. 8-inch photo size: 8x6, 20.3cm* 15.2cm, 1920x 1440 or more with 3 million pixels.

9. Photo size 12 inch: 12x 10, 30.5cm*20.3cm, 2500x2000 and above 5 million pixels.

10, 10 inch photo size: inch 10x8, 25.4cm*20.3cm, 2400x 1920 and above 4 million pixels.