## ››Convert gigatonne to milligram

 gigatonne milligram

How many gigatonne in 1 milligram? The answer is 1.0E-18.
We assume you are converting between gigatonne and milligram.
You can view more details on each measurement unit:
gigatonne or milligram
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1.0E-12 gigatonne, or 1000000 milligram.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigatonnes and milligrams.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of gigatonne to milligram

1 gigatonne to milligram = 1.0E+18 milligram

2 gigatonne to milligram = 2.0E+18 milligram

3 gigatonne to milligram = 3.0E+18 milligram

4 gigatonne to milligram = 4.0E+18 milligram

5 gigatonne to milligram = 5.0E+18 milligram

6 gigatonne to milligram = 6.0E+18 milligram

7 gigatonne to milligram = 7.0E+18 milligram

8 gigatonne to milligram = 8.0E+18 milligram

9 gigatonne to milligram = 9.0E+18 milligram

10 gigatonne to milligram = 1.0E+19 milligram

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

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## ››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).

## ››Definition: Milligram

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 milligram = 10-3 grams-force.

## ››Metric conversions and more

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!