How many astronomical unit in 1 gigametre? The answer is 0.0066845871222684. We assume you are converting between astronomical unit and gigametre. You can view more details on each measurement unit: astronomical unit or gigametre The SI base unit for length is the metre. 1 metre is equal to 6.6845871222684E-12 astronomical unit, or 1.0E-9 gigametre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between astronomical units and gigameters. Type in your own numbers in the form to convert the units!
1 astronomical unit to gigametre = 149.59787 gigametre
2 astronomical unit to gigametre = 299.19574 gigametre
3 astronomical unit to gigametre = 448.79361 gigametre
4 astronomical unit to gigametre = 598.39148 gigametre
5 astronomical unit to gigametre = 747.98935 gigametre
6 astronomical unit to gigametre = 897.58722 gigametre
7 astronomical unit to gigametre = 1047.18509 gigametre
8 astronomical unit to gigametre = 1196.78297 gigametre
9 astronomical unit to gigametre = 1346.38084 gigametre
10 astronomical unit to gigametre = 1495.97871 gigametre
You can do the reverse unit conversion from gigametre to astronomical unit, or enter any two units below:
The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length defined to be exactly equal to 149,597,870,700 metres. Historically, the astronomical unit was conceived as the average Earth-Sun distance (the average of Earth's aphelion and perihelion), before its modern redefinition.
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".
A gigametre (American spelling: gigameter, symbol: Gm) is a unit of length equal to 10^9 metres. Its customary equivalent is 621,371 miles.
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