## Convert gigawatt hour to megawatthour

 gigawatt-hour megawatthour

How many gigawatt-hour in 1 megawatthour? The answer is 0.001.
We assume you are converting between gigawatt hour and megawatthour.
You can view more details on each measurement unit:
gigawatt-hour or megawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 2.7777777777778E-13 gigawatt-hour, or 2.7777777777778E-10 megawatthour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigawatt hours and megawatthour.
Type in your own numbers in the form to convert the units!

## Quick conversion chart of gigawatt-hour to megawatthour

1 gigawatt-hour to megawatthour = 1000 megawatthour

2 gigawatt-hour to megawatthour = 2000 megawatthour

3 gigawatt-hour to megawatthour = 3000 megawatthour

4 gigawatt-hour to megawatthour = 4000 megawatthour

5 gigawatt-hour to megawatthour = 5000 megawatthour

6 gigawatt-hour to megawatthour = 6000 megawatthour

7 gigawatt-hour to megawatthour = 7000 megawatthour

8 gigawatt-hour to megawatthour = 8000 megawatthour

9 gigawatt-hour to megawatthour = 9000 megawatthour

10 gigawatt-hour to megawatthour = 10000 megawatthour

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You can do the reverse unit conversion from megawatthour to gigawatt-hour, or enter any two units below:

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## Definition: Megawatthour

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

So 1 megawatthour = 106 .

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