250 centimeters equals 2,500,000,000 nanometers.
Convert 250 centimeters into meters, kilometers, decimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, astronomical units, parsecs, etc...
Convert 2500000000 nanometers into meters, kilometers, decimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, astronomical units, parsecs, etc...