3 lightyears equals 28,382,191,417,742,400,677,623,103,488 picometers.
Convert 3 lightyears into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, inches, feet, yards, miles, hands, astronomical units, parsecs, etc...
Convert 2.8382191417742E+28 picometers into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, inches, feet, yards, miles, hands, astronomical units, parsecs, etc...