54.78 centimeters is equal to 21.5755905511811 inches.
This can be compared to the length of a standard school ruler, which is typically 12 inches long. 54.78 centimeters is almost twice the length of a ruler.
It is also slightly longer than the average length of a computer keyboard, which is around 18 inches.
Additionally, 54.78 centimeters is slightly shorter than the average length of a skateboard, which is typically around 22 inches.
It is also approximately the same length as a newborn baby, as the average length of a newborn is between 20-22 inches.