2100 decimeters equals 688.98 feet.
Convert 2100 decimeters into meters, kilometers, centimeters, milimeters, micrometers, nanometers, picometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...
Convert 689 feet into meters, kilometers, centimeters, milimeters, micrometers, nanometers, picometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...