39.78 centimeters is equal to 15.65 inches. To give some comparisons:
– This is about the width of a standard laptop screen.
– It is slightly smaller than the length of an average school ruler.
– It is a little less than the height of a standard IKEA bookshelf.
– It is slightly longer than the width of a standard cutting board.
– It is almost the same size as the diagonal length of a medium-sized tablet.