Astronomical unit to Light-second
Astronomical unit (au)
Light-second (ls)
How it is calculated
Each unit is defined via the base unit (meter (m)). The value is first converted to the base unit, then to the selected unit.
1 au = 149597870700 m
1 ls = 299792458 m
1 au × 149597870700 = 149597870700 m
149597870700 m ÷ 299792458 = 499.004783836 ls