5.1063509583471e+20 feet equals 155,641,577,210,419,593,176,313,495,552 nanometers.
Convert 5.1063509583471e+20 feet into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...
Convert 1.5564157721042E+29 nanometers into meters, kilometers, decimeters, centimeters, milimeters, micrometers, picometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...