45.51 centimeters is equal to 17.91 inches.
One common comparison for this length is a standard school ruler, which measures 12 inches. This means that 45.51 centimeters is approximately 1.5 times the length of a ruler.
Another comparison is the length of a standard sheet of printer paper, which is 11 inches. In this case, 45.51 centimeters is just over 1.5 times the length of a sheet of paper.
Additionally, 45.51 centimeters is about the length of a standard laptop screen, which typically measures between 15-17 inches diagonally. This makes 45.51 centimeters a commonly used measurement for computer screens.
Finally, 45.51 centimeters is similar in length to a standard kitchen cutting board, which typically measures between 14-18 inches. This makes it a useful unit for measuring fruits and vegetables while cooking.