How many gigameter in 1 astronomical unit?
The answer is 149.597870691.
We assume you are converting between gigametre and astronomical unit.
You can view more details on each measurement unit:
gigameter or astronomical unit
The SI base unit for length is the metre.
1 metre is equal to 1.0E-9 gigameter, or 6.6845871226706E-12 astronomical unit.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigameters and astronomical units.
Type in your own numbers in the form to convert the units!
1 gigameter to astronomical unit = 0.00668 astronomical unit
10 gigameter to astronomical unit = 0.06685 astronomical unit
50 gigameter to astronomical unit = 0.33423 astronomical unit
100 gigameter to astronomical unit = 0.66846 astronomical unit
200 gigameter to astronomical unit = 1.33692 astronomical unit
500 gigameter to astronomical unit = 3.34229 astronomical unit
1000 gigameter to astronomical unit = 6.68459 astronomical unit
You can do the reverse unit conversion from astronomical unit to gigameter, or enter any two units below:
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A gigametre (American spelling: gigameter, symbol: Gm) is a unit of length equal to 10^9 metres. Its customary equivalent is 621,371 miles.
The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).
The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".
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