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Astronomical Units to Lightyears Converter

Enter Astronomical Units

AU

Lightyears

ly

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⇅ Switch toLightyears to Astronomical Units Converter

How to use this Astronomical Units to Lightyears Converter 🤔

Follow these steps to convert given length from the units of Astronomical Units to the units of Lightyears.

1. Enter the input Astronomical Units value in the text field.
2. The calculator converts the given Astronomical Units into Lightyears in realtime ⌚ using the conversion formula, and displays under the Lightyears label. You do not need to click any button. If the input changes, Lightyears value is re-calculated, just like that.
3. You may copy the resulting Lightyears value using the Copy button.
4. To view a detailed step by step calculation of the conversion, click on the View Calculation button.
5. You can also reset the input by clicking on Reset button present below the input field.

What is the Formula to convert Astronomical Units to Lightyears?

The formula to convert given length from Astronomical Units to Lightyears is:

Length_(Lightyears) = Length_{(Astronomical Units)} / 63241.07708319935

Substitute the given value of length in astronomical units, i.e., Length_{(Astronomical Units)} in the above formula and simplify the right-hand side value. The resulting value is the length in lightyears, i.e., Length_(Lightyears).

Calculation

Calculation will be done after you enter a valid input.

Examples

1

Consider that the average distance from Earth to the Sun is 1 astronomical unit (AU).
Convert this distance from astronomical units to Lightyears.

Answer:

Given:

The length in astronomical units is:

Length_{(Astronomical Units)} = 1

Formula:

The formula to convert length from astronomical units to lightyears is:

Length_(Lightyears) = Length_{(Astronomical Units)} / 63241.07708319935

Substitution:

Substitute given weight Length_{(Astronomical Units)} = 1 in the above formula.

Length_(Lightyears) = 1 / 63241.07708319935

Length_(Lightyears) = 0.0000158125074101

Final Answer:

Therefore, 1 AU is equal to 0.0000158125074101 ly.

The length is 0.0000158125074101 ly, in lightyears.

2

Consider that the distance from Earth to Mars at its closest approach is approximately 0.5 astronomical units (AU).
Convert this distance from astronomical units to Lightyears.

Answer:

Given:

The length in astronomical units is:

Length_{(Astronomical Units)} = 0.5

Formula:

The formula to convert length from astronomical units to lightyears is:

Length_(Lightyears) = Length_{(Astronomical Units)} / 63241.07708319935

Substitution:

Substitute given weight Length_{(Astronomical Units)} = 0.5 in the above formula.

Length_(Lightyears) = 0.5 / 63241.07708319935

Length_(Lightyears) = 0.000007906253705

Final Answer:

Therefore, 0.5 AU is equal to 0.000007906253705 ly.

The length is 0.000007906253705 ly, in lightyears.

Astronomical Units to Lightyears Conversion Table

The following table gives some of the most used conversions from Astronomical Units to Lightyears.

Astronomical Units (AU)	Lightyears (ly)
0 AU	0 ly
1 AU	0.00001581251 ly
2 AU	0.00003162501 ly
3 AU	0.00004743752 ly
4 AU	0.00006325003 ly
5 AU	0.00007906254 ly
6 AU	0.00009487504 ly
7 AU	0.00011068755 ly
8 AU	0.00012650006 ly
9 AU	0.00014231257 ly
10 AU	0.00015812507 ly
20 AU	0.00031625015 ly
50 AU	0.00079062537 ly
100 AU	0.00158125074 ly
1000 AU	0.01581250741 ly
10000 AU	0.1581 ly
100000 AU	1.5813 ly

Astronomical Units

An astronomical unit (AU) is a unit of length used in astronomy to measure distances within our solar system. One astronomical unit is equivalent to approximately 149,597,870.7 kilometers or about 92,955,807.3 miles.

The astronomical unit is defined as the mean distance between the Earth and the Sun.

Astronomical units are used to express distances between celestial bodies within the solar system, such as the distances between planets and their orbits. They provide a convenient scale for describing and comparing distances in a way that is more manageable than using kilometers or miles.

Lightyears

A light-year is a unit of length used in astronomy to measure vast distances. One light-year is equivalent to approximately 9.461 trillion kilometers or about 5.879 trillion miles.

A light-year is defined by the distance that light travels in a vacuum in one year, which is about 9.461 × 10^12 kilometers.

Light-years are used to measure distances between stars, galaxies, and other celestial objects. They provide a convenient way to express astronomical distances, making it easier to understand the scale of the universe.

Frequently Asked Questions (FAQs)

1. What is the formula for converting Astronomical Units to Lightyears in Length?

2. Is this tool free or paid?

3. How do I convert Length from Astronomical Units to Lightyears?

{
  "conversion": "astronomical_unit-lightyears",
  "x_slug": "astronomical_unit",
  "y_slug": "lightyears",
  "x": "AU",
  "y": "ly",
  "x_desc": "Astronomical Units",
  "y_desc": "Lightyears",
  "category": "Length",
  "symbol": "m",
  "formula": "x / 63241.07708319935",
  "precision": 16,
  "examples": "<div class=\"example\">\n        <div class=\"example_head\"><span class=\"example_n\">1</span>\n        <h3 class=\"question\">Consider that the average distance from Earth to the Sun is 1 astronomical unit (AU).<br>Convert this distance from astronomical units to Lightyears.</h3></div>\n        <h4 class=\"answer\">Answer:</h4>\n        <p><strong>Given:</strong></p>\n        <p>The length  in astronomical units is:</p>\n        <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span>  = 1</p>\n        <p><strong>Formula:</strong></p>\n        <p>The formula to convert length from astronomical units to lightyears is:</p>\n        <p class=\"formula step\"><span>Length<sub>(Lightyears)</sub></span> = <span>Length<sub>(Astronomical Units)</sub></span> / 63241.07708319935</p>\n        <p><strong>Substitution:</strong></p>\n        <p>Substitute given weight  <strong>Length<sub>(Astronomical Units)</sub> = 1</strong> in the above formula.</p>\n        <p class=\"step\"><span>Length<sub>(Lightyears)</sub></span> = <span>1</span> / 63241.07708319935</p>\n        <p class=\"step\"><span>Length<sub>(Lightyears)</sub></span> = 0.0000158125074101</p>\n        <p><strong>Final Answer:</strong></p>\n        <p>Therefore, <strong>1 AU</strong> is equal to <strong>0.0000158125074101 ly</strong>.</p>\n        <p>The length  is <strong>0.0000158125074101 ly</strong>, in lightyears.</p>\n        </div>\n      <div class=\"example\">\n        <div class=\"example_head\"><span class=\"example_n\">2</span>\n        <h3 class=\"question\">Consider that the distance from Earth to Mars at its closest approach is approximately 0.5 astronomical units (AU).<br>Convert this distance from astronomical units to Lightyears.</h3></div>\n        <h4 class=\"answer\">Answer:</h4>\n        <p><strong>Given:</strong></p>\n        <p>The length  in astronomical units is:</p>\n        <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span>  = 0.5</p>\n        <p><strong>Formula:</strong></p>\n        <p>The formula to convert length from astronomical units to lightyears is:</p>\n        <p class=\"formula step\"><span>Length<sub>(Lightyears)</sub></span> = <span>Length<sub>(Astronomical Units)</sub></span> / 63241.07708319935</p>\n        <p><strong>Substitution:</strong></p>\n        <p>Substitute given weight  <strong>Length<sub>(Astronomical Units)</sub> = 0.5</strong> in the above formula.</p>\n        <p class=\"step\"><span>Length<sub>(Lightyears)</sub></span> = <span>0.5</span> / 63241.07708319935</p>\n        <p class=\"step\"><span>Length<sub>(Lightyears)</sub></span> = 0.000007906253705</p>\n        <p><strong>Final Answer:</strong></p>\n        <p>Therefore, <strong>0.5 AU</strong> is equal to <strong>0.000007906253705 ly</strong>.</p>\n        <p>The length  is <strong>0.000007906253705 ly</strong>, in lightyears.</p>\n        </div>\n      ",
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  "img": "<img class=\"conversion\" src=\"/images/unit/length/astronomical_unit-lightyears.webp\" height=\"360\" width=\"640\" alt=\"Astronomical Units to Lightyears Converter | AU to ly\" />",
  "table1n": "<h2><span class=\"x\">Astronomical Units</span> to <span class=\"y\">Lightyears</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Astronomical Units to Lightyears.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Astronomical Units (<span class=\"unit\">AU</span>)</th><th scope=\"column\" role=\"columnheader\">Lightyears (<span class=\"unit\">ly</span>)</th><tr></thead><tbody><tr><td>0 <span class=\"unit\">AU</span></td><td>0 <span class=\"unit\">ly</span></td></tr><tr><td>1 <span class=\"unit\">AU</span></td><td>0<span>.00001581251</span> <span class=\"unit\">ly</span></td></tr><tr><td>2 <span class=\"unit\">AU</span></td><td>0<span>.00003162501</span> <span class=\"unit\">ly</span></td></tr><tr><td>3 <span class=\"unit\">AU</span></td><td>0<span>.00004743752</span> <span class=\"unit\">ly</span></td></tr><tr><td>4 <span class=\"unit\">AU</span></td><td>0<span>.00006325003</span> <span class=\"unit\">ly</span></td></tr><tr><td>5 <span class=\"unit\">AU</span></td><td>0<span>.00007906254</span> <span class=\"unit\">ly</span></td></tr><tr><td>6 <span class=\"unit\">AU</span></td><td>0<span>.00009487504</span> <span class=\"unit\">ly</span></td></tr><tr><td>7 <span class=\"unit\">AU</span></td><td>0<span>.00011068755</span> <span class=\"unit\">ly</span></td></tr><tr><td>8 <span class=\"unit\">AU</span></td><td>0<span>.00012650006</span> <span class=\"unit\">ly</span></td></tr><tr><td>9 <span class=\"unit\">AU</span></td><td>0<span>.00014231257</span> <span class=\"unit\">ly</span></td></tr><tr><td>10 <span class=\"unit\">AU</span></td><td>0<span>.00015812507</span> <span class=\"unit\">ly</span></td></tr><tr><td>20 <span class=\"unit\">AU</span></td><td>0<span>.00031625015</span> <span class=\"unit\">ly</span></td></tr><tr><td>50 <span class=\"unit\">AU</span></td><td>0<span>.00079062537</span> <span class=\"unit\">ly</span></td></tr><tr><td>100 <span class=\"unit\">AU</span></td><td>0<span>.00158125074</span> <span class=\"unit\">ly</span></td></tr><tr><td>1000 <span class=\"unit\">AU</span></td><td>0<span>.01581250741</span> <span class=\"unit\">ly</span></td></tr><tr><td>10000 <span class=\"unit\">AU</span></td><td>0<span>.1581</span> <span class=\"unit\">ly</span></td></tr><tr><td>100000 <span class=\"unit\">AU</span></td><td>1<span>.5813</span> <span class=\"unit\">ly</span></td></tr></table>",
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      "Exameters",
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      "petameters",
      "Petameters",
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      "terameters",
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    [
      "gigameters",
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    [
      "nautical_miles_uk",
      "Nautical Miles (UK)",
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      "nautical_miles",
      "Nautical miles (International)",
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      "cubit"
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      "hands",
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      "span_cloth",
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      "barleycorns",
      "Barleycorns",
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      "mil",
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      "microinches",
      "Microinches",
      "µin"
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      "angstroms",
      "Angstroms",
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      "fermi",
      "Fermi",
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      "arpents",
      "Arpent",
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      "Long Reed",
      "long reed"
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      "Earth's distance from sun",
      "earth's distance from sun"
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      "Sun's radius",
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  "y_long_desc": "A light-year is a unit of length used in astronomy to measure vast distances. One light-year is equivalent to approximately 9.461 trillion kilometers or about 5.879 trillion miles. </p><p>A light-year is defined by the distance that light travels in a vacuum in one year, which is about 9.461 × 10^12 kilometers.</p><p>Light-years are used to measure distances between stars, galaxies, and other celestial objects. They provide a convenient way to express astronomical distances, making it easier to understand the scale of the universe.",
  "x_long_desc": "An astronomical unit (AU) is a unit of length used in astronomy to measure distances within our solar system. One astronomical unit is equivalent to approximately 149,597,870.7 kilometers or about 92,955,807.3 miles. </p><p>The astronomical unit is defined as the mean distance between the Earth and the Sun.</p><p>Astronomical units are used to express distances between celestial bodies within the solar system, such as the distances between planets and their orbits. They provide a convenient scale for describing and comparing distances in a way that is more manageable than using kilometers or miles."
}