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

››Quick conversion chart of gigaton to gram

1 gigaton to gram = 1.0E+15 gram

2 gigaton to gram = 2.0E+15 gram

3 gigaton to gram = 3.0E+15 gram

4 gigaton to gram = 4.0E+15 gram

5 gigaton to gram = 5.0E+15 gram

6 gigaton to gram = 6.0E+15 gram

7 gigaton to gram = 7.0E+15 gram

8 gigaton to gram = 8.0E+15 gram

9 gigaton to gram = 9.0E+15 gram

10 gigaton to gram = 1.0E+16 gram

››Want other units?

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

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

So 1 gigatonne = 10^{9} 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).

››Definition: Gram

a metric unit of weight equal to one thousandth of a kilogram

››Metric conversions and more

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