1 ly (light-year) is equal to 5,878,625,373,183.656 mi (mile). To convert from light-year to mile, multiply by 5,878,625,373,183.656 or divide by 0.00000000000017010779502324968.
Five Trillion Eight Hundred Seventy-Eight Billion Six Hundred Twenty-Five Million Three Hundred Seventy-Three Thousand One Hundred Eighty-Three Point Six Five Six Mile