How many attometer in 1 millimetre?
The answer is 1.0E+15.
We assume you are converting between attometre and millimetre.
You can view more details on each measurement unit: attometer or
millimetre
The SI base unit for length is the metre.
1 metre is equal to 1.0E+18 attometer, or 1000 millimetre.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between attometers and millimetres.
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The SI prefix "atto" represents a factor of
10^{-18}, or in exponential notation, 1E-18.

So 1 attometre = 10^{-18} metre.

››Definition: Millimeter

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.

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