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How many mm in 1 exameter?
The answer is 1.0E+21.
We assume you are converting between millimetre and exametre.
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mm or exameter
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, or 1.0E-18 exameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and exameters.
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You can do the reverse unit conversion from exameter 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 "exa" represents a factor of 1018, or in exponential notation, 1E18.
So 1 exametre = 1018 metre.
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