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Quick Conversion Table

Light-year (ly) Light-second (ls)
1 ly31.557.600 ls
2 ly63.115.200 ls
3 ly94.672.800 ls
4 ly126.230.400 ls
5 ly157.788.000 ls
6 ly189.345.600 ls
7 ly220.903.200 ls
8 ly252.460.800 ls
9 ly284.018.400 ls
10 ly315.576.000 ls
100 ly3.155.760.000 ls
200 ly6.311.520.000 ls
300 ly9.467.280.000 ls
400 ly12.623.040.000 ls
500 ly15.778.800.000 ls
600 ly18.934.560.000 ls
700 ly22.090.320.000 ls
800 ly25.246.080.000 ls
900 ly28.401.840.000 ls
1.000 ly31.557.600.000 ls

The math behind converting light-year to light-second

Our converter transforms light-year into light-second by applying a direct proportion rule, since 1 light-year represents exactly 31,557,600 ls.

The basis of the calculation is the formula:

ls=ly×31,557,600mathrm{ls} = mathrm{ly} times 31{,}557{,}600

How to convert light-year to light-second manually:

  1. Choose the value that is in ly first.
  2. Enter the chosen value into the formula.
  3. Finally, you need to multiply by the 31.557.600 value.

The final result will be the measurement in light-seconds (ls).

Example:

The conversion of 1 ly to ls uses the 31.557.600 factor. So just calculate: 1 × 31.557.600, which gives 31557600. Done: 1 ly corresponds exactly to 31557600 ls, represented by:

1 ly=1×31,557,600 ls=31,557,600 ls1 text{ ly} = 1 times 31{,}557{,}600 text{ ls} = 31{,}557{,}600 text{ ls}

Continue converting!

Light-year (ly) -> Astronomical Unit (UA)
Parsec (pc) -> Astronomical Unit (UA)
Light-minute (lm) -> Light-hour (lh)
Parsec (pc) -> Light-year (ly)