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Astronomical Units to Kilometers Converter

Enter Astronomical Units

AU

Kilometers

km

ResetView CalculationCopy

⇅ Switch toKilometers to Astronomical Units Converter

How to use this Astronomical Units to Kilometers Converter 🤔

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

1. Enter the input Astronomical Units value in the text field.
2. The calculator converts the given Astronomical Units into Kilometers in realtime ⌚ using the conversion formula, and displays under the Kilometers label. You do not need to click any button. If the input changes, Kilometers value is re-calculated, just like that.
3. You may copy the resulting Kilometers 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 Kilometers?

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

Length_(Kilometers) = Length_{(Astronomical Units)} / 6.684587122e-9

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 kilometers, i.e., Length_(Kilometers).

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 Kilometers.

Answer:

Given:

The length in astronomical units is:

Length_{(Astronomical Units)} = 1

Formula:

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

Length_(Kilometers) = Length_{(Astronomical Units)} / 6.684587122e-9

Substitution:

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

Length_(Kilometers) = 1 / 6.684587122e-9

Length_(Kilometers) = 149597870.706

Final Answer:

Therefore, 1 AU is equal to 149597870.706 km.

The length is 149597870.706 km, in kilometers.

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 Kilometers.

Answer:

Given:

The length in astronomical units is:

Length_{(Astronomical Units)} = 0.5

Formula:

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

Length_(Kilometers) = Length_{(Astronomical Units)} / 6.684587122e-9

Substitution:

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

Length_(Kilometers) = 0.5 / 6.684587122e-9

Length_(Kilometers) = 74798935.353

Final Answer:

Therefore, 0.5 AU is equal to 74798935.353 km.

The length is 74798935.353 km, in kilometers.

Astronomical Units to Kilometers Conversion Table

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

Astronomical Units (AU)	Kilometers (km)
0 AU	0 km
1 AU	149597870.706 km
2 AU	299195741.412 km
3 AU	448793612.118 km
4 AU	598391482.824 km
5 AU	747989353.53 km
6 AU	897587224.236 km
7 AU	1047185094.9421 km
8 AU	1196782965.6481 km
9 AU	1346380836.3541 km
10 AU	1495978707.0601 km
20 AU	2991957414.1202 km
50 AU	7479893535.3004 km
100 AU	14959787070.6008 km
1000 AU	149597870706.0077 km
10000 AU	1495978707060.077 km
100000 AU	14959787070600.768 km

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.

Kilometers

A kilometer (km) is a unit of length in the International System of Units (SI), equal to 0.6214 miles. One kilometer is one thousand meters.

The prefix "kilo-" means one thousand. A kilometer is defined by 1000 times the distance light travels in 1/299,792,458 seconds. This definition may change, but a kilometer will always be one thousand meters.

Kilometers are used to measure distances on land in most countries. However, the United States and the United Kingdom still often use miles. The UK has adopted the metric system, but miles are still used on road signs.

Frequently Asked Questions (FAQs)

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

2. Is this tool free or paid?

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

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  "x_slug": "astronomical_unit",
  "y_slug": "kilometers",
  "x": "AU",
  "y": "km",
  "x_desc": "Astronomical Units",
  "y_desc": "Kilometers",
  "category": "Length",
  "symbol": "m",
  "formula": "x / 6.684587122e-9",
  "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 Kilometers.</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 kilometers is:</p>\n        <p class=\"formula step\"><span>Length<sub>(Kilometers)</sub></span> = <span>Length<sub>(Astronomical Units)</sub></span> / 6.684587122e-9</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>(Kilometers)</sub></span> = <span>1</span> / 6.684587122e-9</p>\n        <p class=\"step\"><span>Length<sub>(Kilometers)</sub></span> = 149597870.706</p>\n        <p><strong>Final Answer:</strong></p>\n        <p>Therefore, <strong>1 AU</strong> is equal to <strong>149597870.706 km</strong>.</p>\n        <p>The length  is <strong>149597870.706 km</strong>, in kilometers.</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 Kilometers.</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 kilometers is:</p>\n        <p class=\"formula step\"><span>Length<sub>(Kilometers)</sub></span> = <span>Length<sub>(Astronomical Units)</sub></span> / 6.684587122e-9</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>(Kilometers)</sub></span> = <span>0.5</span> / 6.684587122e-9</p>\n        <p class=\"step\"><span>Length<sub>(Kilometers)</sub></span> = 74798935.353</p>\n        <p><strong>Final Answer:</strong></p>\n        <p>Therefore, <strong>0.5 AU</strong> is equal to <strong>74798935.353 km</strong>.</p>\n        <p>The length  is <strong>74798935.353 km</strong>, in kilometers.</p>\n        </div>\n      ",
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  "img": "<img class=\"conversion\" src=\"/images/unit/length/astronomical_unit-kilometers.webp\" height=\"360\" width=\"640\" alt=\"Astronomical Units to Kilometers Converter | AU to km\" />",
  "table1n": "<h2><span class=\"x\">Astronomical Units</span> to <span class=\"y\">Kilometers</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Astronomical Units to Kilometers.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Astronomical Units (<span class=\"unit\">AU</span>)</th><th scope=\"column\" role=\"columnheader\">Kilometers (<span class=\"unit\">km</span>)</th><tr></thead><tbody><tr><td>0 <span class=\"unit\">AU</span></td><td>0 <span class=\"unit\">km</span></td></tr><tr><td>1 <span class=\"unit\">AU</span></td><td>149597870<span>.706</span> <span class=\"unit\">km</span></td></tr><tr><td>2 <span class=\"unit\">AU</span></td><td>299195741<span>.412</span> <span class=\"unit\">km</span></td></tr><tr><td>3 <span class=\"unit\">AU</span></td><td>448793612<span>.118</span> <span class=\"unit\">km</span></td></tr><tr><td>4 <span class=\"unit\">AU</span></td><td>598391482<span>.824</span> <span class=\"unit\">km</span></td></tr><tr><td>5 <span class=\"unit\">AU</span></td><td>747989353<span>.53</span> <span class=\"unit\">km</span></td></tr><tr><td>6 <span class=\"unit\">AU</span></td><td>897587224<span>.236</span> <span class=\"unit\">km</span></td></tr><tr><td>7 <span class=\"unit\">AU</span></td><td>1047185094<span>.9421</span> <span class=\"unit\">km</span></td></tr><tr><td>8 <span class=\"unit\">AU</span></td><td>1196782965<span>.6481</span> <span class=\"unit\">km</span></td></tr><tr><td>9 <span class=\"unit\">AU</span></td><td>1346380836<span>.3541</span> <span class=\"unit\">km</span></td></tr><tr><td>10 <span class=\"unit\">AU</span></td><td>1495978707<span>.0601</span> <span class=\"unit\">km</span></td></tr><tr><td>20 <span class=\"unit\">AU</span></td><td>2991957414<span>.1202</span> <span class=\"unit\">km</span></td></tr><tr><td>50 <span class=\"unit\">AU</span></td><td>7479893535<span>.3004</span> <span class=\"unit\">km</span></td></tr><tr><td>100 <span class=\"unit\">AU</span></td><td>14959787070<span>.6008</span> <span class=\"unit\">km</span></td></tr><tr><td>1000 <span class=\"unit\">AU</span></td><td>149597870706<span>.0077</span> <span class=\"unit\">km</span></td></tr><tr><td>10000 <span class=\"unit\">AU</span></td><td>1495978707060<span>.077</span> <span class=\"unit\">km</span></td></tr><tr><td>100000 <span class=\"unit\">AU</span></td><td>14959787070600<span>.768</span> <span class=\"unit\">km</span></td></tr></table>",
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      "mil",
      "mil",
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      "microinches",
      "Microinches",
      "µin"
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      "angstroms",
      "Angstroms",
      "A"
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  "y_long_desc": "A kilometer (km) is a unit of length in the International System of Units (SI), equal to 0.6214 miles. One kilometer is one thousand meters. </p><p>The prefix \"kilo-\" means one thousand. A kilometer is defined by 1000 times the distance light travels in 1/299,792,458 seconds. This definition may change, but a kilometer will always be one thousand meters. </p><p>Kilometers are used to measure distances on land in most countries. However, the United States and the United Kingdom still often use miles. The UK has adopted the metric system, but miles are still used on road signs.",
  "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."
}