## ››Convert grain to megatonne

 grain megatonne

How many grain in 1 megatonne? The answer is 15432358352941.
We assume you are converting between grain and megatonne.
You can view more details on each measurement unit:
grain or megatonne
The SI base unit for mass is the kilogram.
1 kilogram is equal to 15432.358352941 grain, or 1.0E-9 megatonne.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between grains and megatonnes.
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## ››Definition: Megatonne

The SI prefix "mega" represents a factor of 106, or in exponential notation, 1E6.

So 1 megatonne = 106 tonnes.

The definition of a tonne is as follows:

A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 1000 kg (= 106 g).

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