20 astronomical units equals 2,991,957,413,999,999,975,424 nanometers.
Convert 20 astronomical units into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, parsecs, etc...
Convert 2.991957414E+21 nanometers into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, feet, yards, miles, hands, lightyears, parsecs, etc...