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How many mm in 1 gigaparsec?
The answer is 3.085678E+28.
We assume you are converting between millimetre and gigaparsec.
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mm or gigaparsec
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, or 3.2407788498994E-26 gigaparsec.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and gigaparsecs.
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You can do the reverse unit conversion from gigaparsec to mm, or enter any two units below:
A millimetre (American spelling: millimeter, symbol mm) is one thousandth of a metre, which is the International System of Units (SI) base unit of length. The millimetre is part of a metric system. A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre.
The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.
So 1 gigaparsec = 109 parsecs.
The definition of a parsec is as follows:
The parsec (symbol pc) is a unit of length used in astronomy. It stands for "parallax of one arc second", and is approximately 19,131,554,073,600 (19 trillion) miles.
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