2.9937243937377e+22 centimeters equals 299,372,439,373,769,972,030,331,944,960 nanometers.
Convert 2.9937243937377e+22 centimeters into meters, kilometers, decimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, astronomical units, parsecs, etc...
Convert 2.9937243937377E+29 nanometers into meters, kilometers, decimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, astronomical units, parsecs, etc...