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How many astronomical unit in 1 Mm? The answer is 6.6845871222684E-6. We assume you are converting between astronomical unit and megametre. You can view more details on each measurement unit: astronomical unit or Mm The SI base unit for length is the metre. 1 metre is equal to 6.6845871222684E-12 astronomical unit, or 1.0E-6 Mm. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between astronomical units and megameters. Type in your own numbers in the form to convert the units!
1 astronomical unit to Mm = 149597.8707 Mm
2 astronomical unit to Mm = 299195.7414 Mm
3 astronomical unit to Mm = 448793.6121 Mm
4 astronomical unit to Mm = 598391.4828 Mm
5 astronomical unit to Mm = 747989.3535 Mm
6 astronomical unit to Mm = 897587.2242 Mm
7 astronomical unit to Mm = 1047185.0949 Mm
8 astronomical unit to Mm = 1196782.9656 Mm
9 astronomical unit to Mm = 1346380.8363 Mm
10 astronomical unit to Mm = 1495978.707 Mm
You can do the reverse unit conversion from Mm 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 megametre (American spelling: megameter, symbol: Mm) is a unit of length equal to 10^6 metres (from the Greek words megas = big and metro = count/measure). Its customary equivalent is 621.37 miles.
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