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How many astronomical unit in 1 perch [Ireland]? The answer is 4.2786705252216E-11. We assume you are converting between astronomical unit and perch [Ireland]. You can view more details on each measurement unit: astronomical unit or perch [Ireland] The SI base unit for length is the metre. 1 metre is equal to 6.6845871222684E-12 astronomical unit, or 0.1562304711911 perch [Ireland]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between astronomical units and perch [Ireland]. Type in your own numbers in the form to convert the units!
1 astronomical unit to perch [Ireland] = 23371745828.646 perch [Ireland]
2 astronomical unit to perch [Ireland] = 46743491657.293 perch [Ireland]
3 astronomical unit to perch [Ireland] = 70115237485.939 perch [Ireland]
4 astronomical unit to perch [Ireland] = 93486983314.586 perch [Ireland]
5 astronomical unit to perch [Ireland] = 116858729143.23 perch [Ireland]
6 astronomical unit to perch [Ireland] = 140230474971.88 perch [Ireland]
7 astronomical unit to perch [Ireland] = 163602220800.52 perch [Ireland]
8 astronomical unit to perch [Ireland] = 186973966629.17 perch [Ireland]
9 astronomical unit to perch [Ireland] = 210345712457.82 perch [Ireland]
10 astronomical unit to perch [Ireland] = 233717458286.46 perch [Ireland]
You can do the reverse unit conversion from perch [Ireland] 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".
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