648 centimeters is equal to 255.118110236 inches.
Some comparisons to known objects of similar size are:
– The length of four average-sized school rulers stacked on top of each other (12 inches each)
– The height of a 21-inch computer monitor stacked with a 27-inch computer monitor
– The length of a 20-inch bicycle wheel and frame (not including handlebars)
– The height of a 5 foot 6 inch person standing on their tippy toes (66 inches)
– The length of two standard-sized American footballs placed end to end (11 inches each)