How many gram in 1 megatonne?
The answer is 1000000000000.
We assume you are converting between gram and megatonne.
You can view more details on each measurement unit: gram or
megatonne
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1000 gram, or 1.0E-9 megatonne.
Note that rounding errors may occur, so always check the results.
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a metric unit of weight equal to one thousandth of a kilogram

››Definition: Megatonne

The SI prefix "mega" represents a factor of
10^{6}, or in exponential notation, 1E6.

So 1 megatonne = 10^{6} 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 (= 10^{6} g).

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