## ››Convert millimetre to terametre

 millimetre terameter

How many millimetre in 1 terameter? The answer is 1.0E+15.
We assume you are converting between millimetre and terametre.
You can view more details on each measurement unit:
millimetre or terameter
The SI base unit for length is the metre.
1 metre is equal to 1000 millimetre, or 1.0E-12 terameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and terameters.
Type in your own numbers in the form to convert the units!

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You can do the reverse unit conversion from terameter to millimetre, or enter any two units below:

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## ››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.

## ››Definition: Terametre

The SI prefix "tera" represents a factor of 1012, or in exponential notation, 1E12.

So 1 terametre = 1012 metre.

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