3 miles equals 4,828,032,000,000 nanometers.
Convert 3 miles into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, feet, yards, hands, lightyears, astronomical units, parsecs, etc...
Convert 4828032000000 nanometers into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, feet, yards, hands, lightyears, astronomical units, parsecs, etc...