How many gigawatt-hours 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-hours or megawatthour The SI derived unit for energy is the joule. 1 joule is equal to 2.7777777777778E-13 gigawatt-hours, 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!
1 gigawatt-hours to megawatthour = 1000 megawatthour
2 gigawatt-hours to megawatthour = 2000 megawatthour
3 gigawatt-hours to megawatthour = 3000 megawatthour
4 gigawatt-hours to megawatthour = 4000 megawatthour
5 gigawatt-hours to megawatthour = 5000 megawatthour
6 gigawatt-hours to megawatthour = 6000 megawatthour
7 gigawatt-hours to megawatthour = 7000 megawatthour
8 gigawatt-hours to megawatthour = 8000 megawatthour
9 gigawatt-hours to megawatthour = 9000 megawatthour
10 gigawatt-hours to megawatthour = 10000 megawatthour
You can do the reverse unit conversion from megawatthour to gigawatt-hours, or enter any two units below:
The SI prefix "mega" represents a factor of 106, or in exponential notation, 1E6.
So 1 megawatthour = 106 .
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