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Astronomical Unit to Kilometer

Convert Astronomical Unit (au) to Kilometer (km)

Please provide values below to convert Astronomical Unit (au) to Kilometer (km).
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      Updated on September 1, 2025

      About Astronomical Unit (au) to Kilometer (km) Conversion Calculator

      Written By
      author
      Nadiba Rahman
      Reviewed by
      author
      Mrinmoy Roy
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      You can use our Astronomical Unit (au) to Kilometer (km) conversion calculator as a reliable and efficient tool to simplify length conversions. It is designed for professionals, students, and anyone who needs a quick and accurate result. Conversion of Astronomical Unit (au) to Kilometer (km) is crucial in Astronomy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our Astronomical Unit (au) to Kilometer (km) converter.

      Relation Between Astronomical Unit (au) and Kilometer (km)

      Let me explain to you about the relation between Astronomical Unit au and Kilometer (km) first before moving to the conversion process. Because it’s essential to grasp what these units represent.

      What is Astronomical Unit (au)?

      An astronomical unit (AU) is the average distance between the Earth and the Sun, approximately 149.6 million kilometers. Astronomical Unit (au) is a unit of length measurement which is commonly used in Astronomy. Used in astronomy for measuring distances within the solar system. Essential for understanding planetary orbits. 1 AU = ~8.3 light minutes..

      What is Kilometer (km)?

      Astronomical Unit (au) is another unit of length measurement that is used in Space measurement. A kilometer is a unit of length equal to 1,000 meters.. Used in astronomy for measuring distances within the solar system. Essential for understanding planetary orbits. 1 AU = ~8.3 light minutes..

      How to Convert Kilometer (km)?

      The conversion between Astronomical Unit (au) and Kilometer (km) follows a simple formula:

      Astronomical Unit = Astronomical Unit × 149597870700

      Where, 149597870700 is the value that allows you to convert between Astronomical Unit (au) and Kilometer (km).

      So,

      1 Kilometer = 149597870700 Astronomical Unit

      And, 1 Astronomical Unit = 1/149597870700 Kilometer
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      Examples of Converting Astronomical Unit (au) to Kilometer (km)

      To convert any value from Astronomical Unit (au) to Kilometer (km), simply multiply the amount of Astronomical Unit (au) by the conversion factor:

      1 Kilometer = 149597870700 Astronomical Unit

      For example, if you want to convert 5 Astronomical Unit into Kilometer and the conversion factor is 149597870700, then:

      5 Astronomical Unit = 5 x 149597870700 Kilometer

      Astronomical Unit (au) to Kilometer (km) Conversion Chart

      Here’s a quick reference chart for common conversions between Astronomical Unit (au) and Kilometer (km)
      Astronomical Unit (au)Kilometer (km)
      1000 Astronomical Unit (au)149597870700000 Kilometer (km)
      1100 Astronomical Unit (au)164557657770000 Kilometer (km)
      1200 Astronomical Unit (au)179517444840000 Kilometer (km)
      1300 Astronomical Unit (au)194477231910000 Kilometer (km)
      1400 Astronomical Unit (au)209437018980000 Kilometer (km)
      1500 Astronomical Unit (au)224396806050000 Kilometer (km)
      1600 Astronomical Unit (au)239356593120000 Kilometer (km)
      1700 Astronomical Unit (au)254316380190000 Kilometer (km)
      1800 Astronomical Unit (au)269276167260000 Kilometer (km)
      1900 Astronomical Unit (au)284235954330000 Kilometer (km)
      You can use the above chart for quick and easy reference.

      How 1 Astronomical Unit (au) Converts to Other length Units

      See the relation between Astronomical Unit (au) and other length related measurement units:
      1 Astronomical Unit(au)1.495978707e+21 Angstrom (Å)
      1 Astronomical Unit(au)807763880.669546 Cables
      1 Astronomical Unit(au)14959787070000.000000 Centimeter (cm)
      1 Astronomical Unit(au)1495978707000.000000 Decimeter (dm)
      1 Astronomical Unit(au)130881776640.419952 Ells (ells)
      1 Astronomical Unit(au)129252560284800.000000 Ems (ems)
      1 Astronomical Unit(au)81801110400.262466 Fathom
      1 Astronomical Unit(au)490806662401.574768 Foot (ft)
      1 Astronomical Unit(au)743646458.184204 Furlong
      1 Astronomical Unit(au)1472419987204.724365 Hand
      1 Astronomical Unit(au)1495978707000.000000 Hectometer (hm)
      1 Astronomical Unit(au)5889679948818.897461 Inch (in)
      1 Astronomical Unit(au)0.000016 Light Year (ly)
      1 Astronomical Unit(au)149597870700.000000 Meter (m)
      1 Astronomical Unit(au)149597870700000000.000000 Micrometer (µm)
      1 Astronomical Unit(au)5889679948818897.000000 Mil (mil)
      1 Astronomical Unit(au)92955807.273026 Mile (mi)
      1 Astronomical Unit(au)149597870700000.000000 Millimeter (mm)
      1 Astronomical Unit(au)149597870699999985664.000000 Nanometer (nm)
      1 Astronomical Unit(au)0.000005 Parsec (pc)
      1 Astronomical Unit(au)1.495978707e+23 Picometer (pm)
      1 Astronomical Unit(au)5889679948818897.000000 Thou
      1 Astronomical Unit(au)163602220800.524933 Yard (yd)

      Features of Our Astronomical Unit (au) to Kilometer (km) Conversion Calculator

      Our Astronomical Unit au to Kilometer (km) converter is more than just a basic converter. Here's what makes it stand out:

      Output Precision Control

      You can control how precise your conversion results are. From settings, you can adjust decimal places from 0 to 12 places.

      Customizable Rounding Options

      You can control the output rounding options based on your necessity. You can turn the rounding mode on or off, and select between Ceiling or Floor rounding to match your needs.

      Multiple Number Formats

      Display your results the way you want:
      1. Standard format (e.g. 12.345245)
      2. Scientific notation (e.g. 1.23452e+1)
      3. Engineering format (e.g. 1.23452 × 10^1)

      Integrated Scientific Calculator

      We know you need to switch between a unit converter and a general calculator back and forth. To minimize your hassle, our Astronomical Unit au to Kilometer (km) converter comes up with an integrated scientific calculator.

      Conversion History Tracking

      You can always review your past length conversions and go to them whenever you like. It stores your most recent 10 unit conversions.

      Thousand Separators Toggle

      Our Astronomical Unit au to Kilometer (km) converter improves the output readability by toggling the thousand separators “On”. It’s useful when you work with large numbers.

      Conclusion

      Now, you understand how to convert Astronomical Unit au to Kilometer (km) manually. But you can bypass the manual calculation using our length conversion calculator. This allows you to get faster and accurate results in Kilometer (km), which you can use in Astronomy related measurements. With the help of our integrated scientific calculator, calculation history tracking, and precision control, our Astronomical Unit au to Kilometer (km) converter is your swiss army knife for daily calculations.
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