```
A4 Size: 
21 x 29.7 cm
210 x 297 mm
8.27 x 11.69 inches

4x6 Size:
10 x 15 cm
100 x 150 mm

A4 for 4x6
2 Photos =  10.5 x 14.85 cm
4 Photos = 5.25 x 7.425 cm
5 Photos = 4.2 x 5.94 cm /* Some issues */ 
5 Photos = 4 x 6 cm
6 Photos = 3.5 x 4.95 cm
```