683.27 centimeters is equal to 269.06 inches.
This is roughly the height of a 6-foot 2-inch tall person (188 cm) plus the length of an average hand (20 cm).
It is also almost the length of a standard queen size bed (60 inches x 80 inches = 140 inches).
It is slightly shorter than the length of a standard soccer goal (width: 24 feet = 288 inches).