How many zettameter in 1 astronomical unit? The answer is 1.495978707E-10. We assume you are converting between zettametre and astronomical unit. You can view more details on each measurement unit: zettameter or astronomical unit The SI base unit for length is the metre. 1 metre is equal to 1.0E-21 zettameter, or 6.6845871222684E-12 astronomical unit. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between zettameters and astronomical units. Type in your own numbers in the form to convert the units!
1 zettameter to astronomical unit = 6684587122.2684 astronomical unit
2 zettameter to astronomical unit = 13369174244.537 astronomical unit
3 zettameter to astronomical unit = 20053761366.805 astronomical unit
4 zettameter to astronomical unit = 26738348489.074 astronomical unit
5 zettameter to astronomical unit = 33422935611.342 astronomical unit
6 zettameter to astronomical unit = 40107522733.611 astronomical unit
7 zettameter to astronomical unit = 46792109855.879 astronomical unit
8 zettameter to astronomical unit = 53476696978.148 astronomical unit
9 zettameter to astronomical unit = 60161284100.416 astronomical unit
10 zettameter to astronomical unit = 66845871222.684 astronomical unit
You can do the reverse unit conversion from astronomical unit to zettameter, or enter any two units below:
The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.
So 1 zettametre = 1021 metre.
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".
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