How many astronomical unit in 1 millikilometre? The answer is 6.6845871222684E-12. We assume you are converting between astronomical unit and millikilometre. You can view more details on each measurement unit: astronomical unit or millikilometre The SI base unit for length is the metre. 1 metre is equal to 6.6845871222684E-12 astronomical unit, or 1 millikilometre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between astronomical units and millikilometres. Type in your own numbers in the form to convert the units!
1 astronomical unit to millikilometre = 149597870700 millikilometre
2 astronomical unit to millikilometre = 299195741400 millikilometre
3 astronomical unit to millikilometre = 448793612100 millikilometre
4 astronomical unit to millikilometre = 598391482800 millikilometre
5 astronomical unit to millikilometre = 747989353500 millikilometre
6 astronomical unit to millikilometre = 897587224200 millikilometre
7 astronomical unit to millikilometre = 1047185094900 millikilometre
8 astronomical unit to millikilometre = 1196782965600 millikilometre
9 astronomical unit to millikilometre = 1346380836300 millikilometre
10 astronomical unit to millikilometre = 1495978707000 millikilometre
You can do the reverse unit conversion from millikilometre 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".
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millikilometre = 10-3 kilometre.
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