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664.68 centimeters is equal to 261.77 inches.

To put this into context, here are comparisons to known objects of similar size:
– A standard door is typically around 80 inches tall, meaning 664.68 centimeters is approximately 3.3 times taller than a door.
– The average height of an adult male in the United States is 69.2 inches, so 664.68 centimeters is about 3.78 times taller than the average man.
– The wingspan of a bald eagle can range from 6 to 7.5 feet, which is equivalent to 72 to 90 inches. This means that 664.68 centimeters is approximately 2.91 to 3.64 times longer than the wingspan of a bald eagle.
– An average smartphone is around 6 inches in length, so 664.68 centimeters is about 43.62 times longer than a smartphone.
– The Empire State Building is approximately 1,454 feet tall, which is equal to 17,448 inches. This means that 664.68 centimeters is roughly 0.02% of the height of the Empire State Building.