636.97 centimeters is equivalent to 251.37795 inches.
To give a comparison, 251 inches is roughly:
– The height of the average adult giraffe (16-18 feet or 192-216 inches)
– The length of a standard school bus (240-300 inches)
– The length of a regulation NBA basketball court (240 inches)
– The length of two and a half king-sized beds placed end to end (40-80 inches per bed depending on brand)
– The distance between two opposite ends of a standard queen-sized bed (just over 200 inches)