US survey foot to Light-second
US survey foot (ft US)
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 ft US = 0.304800609601 m
1 ls = 299792458 m
1 ft US × 0.304800609601 = 0.304800609601 m
0.304800609601 m ÷ 299792458 = 1.01670540e-9 ls