1 Light Year = 9324744613632km
One light year is defined by travelling for 365 days at the constant speed of light, which is 299 792 458 m/s
m = distance in metres
s = time in seconds
Proxima Centauri is 4.3 light-years from the Sun.
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.