## ››Convert megagram to gigatonne

 megagram gigatonne

How many megagram in 1 gigatonne? The answer is 1000000000.
We assume you are converting between megagram and gigatonne.
You can view more details on each measurement unit:
megagram or gigatonne
The SI base unit for mass is the kilogram.
1 kilogram is equal to 0.001 megagram, or 1.0E-12 gigatonne.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between megagrams and gigatonnes.
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## ››Definition: Megagram

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

So 1 megagram = 106 grams-force.

## ››Definition: Gigatonne

The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.

So 1 gigatonne = 109 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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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!