How many megawatthour in 1 gigawatt-hour? The answer is 1000. We assume you are converting between megawatthour and gigawatt hour. You can view more details on each measurement unit: megawatthour or gigawatt-hour The SI derived unit for energy is the joule. 1 joule is equal to 2.7777777777778E-10 megawatthour, or 2.7777777777778E-13 gigawatt-hour. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between megawatthour and gigawatt hours. Type in your own numbers in the form to convert the units!
1 megawatthour to gigawatt-hour = 0.001 gigawatt-hour
10 megawatthour to gigawatt-hour = 0.01 gigawatt-hour
50 megawatthour to gigawatt-hour = 0.05 gigawatt-hour
100 megawatthour to gigawatt-hour = 0.1 gigawatt-hour
200 megawatthour to gigawatt-hour = 0.2 gigawatt-hour
500 megawatthour to gigawatt-hour = 0.5 gigawatt-hour
1000 megawatthour to gigawatt-hour = 1 gigawatt-hour
You can do the reverse unit conversion from gigawatt-hour to megawatthour, 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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