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    Astronomical Unit to Furlong Converter

    Convert Astronomical Unit (AU) to Furlong (fur) instantly. 1 AU = 743,646,458.184204 fur.

    Length Converter

    31 units available

    Decimals:
    743,646,458.184204

    1 AU = 743,646,458.184204 fur

    Formula:

    fur = AU × 743,646,458.1842042

    With your value: 1 AU = 743,646,458.1842041 fur

    How big is that?

    Everyday references on a logarithmic scale, all expressed in astronomical unit so you can sanity-check the result.

    Olympic pool (1/3.0e+9 your value)3.34e-10 AU
    Football pitch (length) (1/1.4e+9 your value)7.02e-10 AU
    Eiffel Tower (1/4.5e+8 your value)2.21e-9 AU
    Burj Khalifa (1/1.8e+8 your value)5.53e-9 AU
    Marathon (1/3.5e+6 your value)2.82e-7 AU
    Your value1.00 AU

    Other Astronomical Unit to Furlong conversions

    2 AU to fur3 AU to fur4 AU to fur5 AU to fur6 AU to fur7 AU to fur8 AU to fur

    Astronomical Unit to Furlong Conversion Table

    Astronomical Unit (AU)Furlong (fur)
    0.5371,823,229.092102
    1743,646,458.184204
    21,487,292,916.368409
    53,718,232,290.921021
    107,436,464,581.842042
    1511,154,696,872.763063
    2014,872,929,163.684084
    2518,591,161,454.605106
    5037,182,322,909.21021
    10074,364,645,818.42043
    250185,911,614,546.05103
    500371,823,229,092.10205
    1000743,646,458,184.2041

    Furlong to Astronomical Unit Conversion Table

    Furlong (fur)Astronomical Unit (AU)
    0.56.723625e-10
    11.344725e-9
    22.689450e-9
    56.723625e-9
    101.344725e-8
    152.017088e-8
    202.689450e-8
    253.361813e-8
    506.723625e-8
    1001.344725e-7
    2503.361813e-7
    5006.723625e-7
    10001.344725e-6

    Where these values come from

    Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

    Astronomical Unit (AU)

    Length

    Exact conversion

    The astronomical unit is exactly 149 597 870 700 m (IAU Resolution B2, 2012).

    Source: IAU Resolution B2 (2012) — definition of the astronomical unit; IAU B2 (2015) nominal values

    International Astronomical Union · Reviewed 2026-07-01

    Furlong (fur)

    Length

    Exact conversion

    Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).

    Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

    Bureau International des Poids et Mesures · Reviewed 2026-07-01

    How to Convert Astronomical Unit to Furlong

    To convert from Astronomical Unit (AU) to Furlong (fur), multiply the value by 743,646,458.1842042.

    Formula: fur = AU × 743,646,458.1842042

    Reverse: AU = fur × 1.344725e-9

    Step-by-Step Example

    1. Start with your value in Astronomical Unit. For example: 5 AU
    2. Multiply by the conversion factor: 5 x 743,646,458.1842042
    3. The result is: 3,718,232,290.921021 fur

    About Astronomical Unit

    The astronomical unit (AU) is defined as exactly 149,597,870,700 metres, close to the mean Earth–Sun distance. It is the natural yardstick for the Solar System.

    Common uses: planetary science, orbital mechanics, astronomy.

    About Furlong

    The furlong equals 220 yards (201.168 m), one eighth of a mile. It survives almost exclusively in horse racing.

    Common uses: horse racing, historic land records.

    Frequently Asked Questions

    How many Furlong are in 1 Astronomical Unit?

    There are exactly 743,646,458.1842042 Furlong in 1 Astronomical Unit. This means the conversion factor from Astronomical Unit to Furlong is 743,646,458.1842042.

    What is the formula to convert Astronomical Unit to Furlong?

    The formula to convert Astronomical Unit to Furlong is: fur = AU × 743,646,458.1842042. For example, to convert 10 Astronomical Unit to Furlong, you would multiply 10 by 743,646,458.1842042.

    What is a Astronomical Unit?

    The astronomical unit (AU) is defined as exactly 149,597,870,700 metres, close to the mean Earth–Sun distance. It is the natural yardstick for the Solar System.

    What is a Furlong?

    The furlong equals 220 yards (201.168 m), one eighth of a mile. It survives almost exclusively in horse racing.

    What are the common uses of Astronomical Unit?

    The Astronomical Unit is commonly used in planetary science, orbital mechanics, astronomy.

    Related Length Conversions

    Meter → FurlongKilometer → FurlongCentimeter → FurlongMillimeter → FurlongMicrometer → FurlongNanometer → FurlongAngstrom → FurlongMile → FurlongYard → Furlong

    Cite this page

    UnitConvertLab. (2026). Astronomical Unit to Furlong converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/astronomical_unit-to-furlong