How many gigagram in 1 megatonne?
The answer is 1000.
We assume you are converting between gigagram and megatonne.
You can view more details on each measurement unit: gigagram or
megatonne
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1.0E-6 gigagram, 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 gigagrams and megatonnes.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of gigagram to megatonne

1 gigagram to megatonne = 0.001 megatonne

10 gigagram to megatonne = 0.01 megatonne

50 gigagram to megatonne = 0.05 megatonne

100 gigagram to megatonne = 0.1 megatonne

200 gigagram to megatonne = 0.2 megatonne

500 gigagram to megatonne = 0.5 megatonne

1000 gigagram to megatonne = 1 megatonne

››Want other units?

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

The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigagram = 10^{9} grams-force.

››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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