Didot point to Light-second
Didot point (dd)
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 dd = 0.000376065 m
1 ls = 299792458 m
1 dd × 0.000376065 = 0.000376065 m
0.000376065 m ÷ 299792458 = 1.25441781e-12 ls