# light-year to millimetre conversion

Conversion number between light-year [ly] and millimetre [mm] is 9.4607304725808 × 10+18. This means, that light-year is bigger unit than millimetre.

### Contents [show][hide]

Switch to reverse conversion:
from millimetre to light-year conversion

### Enter the number in light-year:

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

Result in millimetre

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

### Calculation process of conversion value

• 1 light-year = (exactly) (9460730472580800) / (0.001) = 9.4607304725808 × 10+18 millimetre
• 1 millimetre = (exactly) (0.001) / (9460730472580800) = 1.0570008340246 × 10-19 light-year
• ? light-year × (9460730472580800  ("m"/"light-year")) / (0.001  ("m"/"millimetre")) = ? millimetre

### High precision conversion

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

Decimal places: (0-800)

light-year
Result in millimetre:
?

### light-year to millimetre conversion chart

 Start value: [light-year] Step size [light-year] How many lines? (max 100)

visual:
light-yearmillimetre
00
109.4607304725808 × 10+19
201.8921460945162 × 10+20
302.8382191417742 × 10+20
403.7842921890323 × 10+20
504.7303652362904 × 10+20
605.6764382835485 × 10+20
706.6225113308066 × 10+20
807.5685843780646 × 10+20
908.5146574253227 × 10+20
1009.4607304725808 × 10+20
1101.0406803519839 × 10+21
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## Multiple conversion

Enter numbers in light-year and click convert button.
One number per line.

Converted numbers in millimetre:
Click to select all

## Details about light-year and millimetre units:

Convert Light-year to other unit:

### light-year

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

Convert Millimetre to other unit:

### millimetre

Definition of millimetre unit: =1x10-3 m.

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