# astronomical unit to light-year conversion

Conversion number between astronomical unit [AU] and light-year [ly] is 1.5812507409821 × 10-5. This means, that astronomical unit is smaller unit than light-year.

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Switch to reverse conversion:
from light-year to astronomical unit conversion

### Enter the number in astronomical unit:

Decimal Fraction Exponential Expression
 [AU]
eg.: 10.12345 or 1.123e5

Result in light-year

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 astronomical unit = (exactly) (149597870700) / (9460730472580800) = 1.5812507409821 × 10-5 light-year
• 1 light-year = (exactly) (9460730472580800) / (149597870700) = 63241.077084266 astronomical unit
• ? astronomical unit × (149597870700  ("m"/"astronomical unit")) / (9460730472580800  ("m"/"light-year")) = ? light-year

### High precision conversion

If conversion between astronomical unit to metre and metre to light-year is exactly definied, high precision conversion from astronomical unit to light-year is enabled.

Decimal places: (0-800)

astronomical unit
Result in light-year:
?

### astronomical unit to light-year conversion chart

 Start value: [astronomical unit] Step size [astronomical unit] How many lines? (max 100)

visual:
astronomical unitlight-year
00
100.00015812507409821
200.00031625014819641
300.00047437522229462
400.00063250029639283
500.00079062537049103
600.00094875044458924
700.0011068755186874
800.0012650005927857
900.0014231256668839
1000.0015812507409821
1100.0017393758150803
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## Multiple conversion

Enter numbers in astronomical unit and click convert button.
One number per line.

Converted numbers in light-year:
Click to select all

## Details about astronomical unit and light-year units:

Convert Astronomical unit to other unit:

### astronomical unit

Definition of astronomical unit unit: ≡ 149597870700 m. ≈ Distance from Earth to Sun

Convert Light-year to other unit:

### light-year

Definition of light-year unit: ≡ Distance light travels in vacuum in 365.25 days.

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