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Megawatt-hour [MWh] to Gigawatt-hour [GWh] Converter

Quick Reference

1 Megawatt-hour (MWh) = 0.001 Gigawatt-hour (GWh)

1 Gigawatt-hour (GWh) = 1000 Megawatt-hour (MWh)

How to Convert Megawatt-hour to Gigawatt-hour

1 MWh = 0.001 GWh
1 GWh = 1000 MWh

To convert Megawatt-hour to Gigawatt-hour, divide the value by 1000 (equivalently, multiply by 0.001). To convert Gigawatt-hour back to Megawatt-hour, multiply by 1000.

Example: convert 10 MWh to GWh:
10 MWh = 10 x 0.001 = 0.01 GWh

↔ Convert Gigawatt-hour to Megawatt-hour

Megawatt-hour

Definition: A megawatt-hour (symbol MWh) is a unit of energy equal to one megawatt (1,000,000 watts) of power sustained for one hour. It represents a large amount of energy.

History/origin: The megawatt-hour is a derivative of the watt-hour, using the SI prefix 'mega-' to denote a factor of one million. It was developed to represent energy production and consumption on a larger scale.

Current use: Megawatt-hours are used to measure the energy output of large power plants, the energy consumption of large industrial facilities, and the trading of electricity on wholesale markets.

Gigawatt-hour

Definition: A gigawatt-hour (symbol GWh) is a unit of energy equal to one gigawatt (1,000,000,000 watts) of power sustained for one hour. It represents a very large amount of energy.

History/origin: The gigawatt-hour is a derivative of the watt-hour, using the SI prefix 'giga-' to denote a factor of one billion. It became relevant with the development of very large-scale power generation facilities.

Current use: Gigawatt-hours are used to measure the energy output of entire power grids, the energy consumption of large countries or regions, and the total energy production of large renewable energy projects.

Megawatt-hour to Gigawatt-hour Conversion Table

Megawatt-hour [MWh]Gigawatt-hour [GWh]
1 MWh0.001 GWh
2 MWh0.002 GWh
5 MWh0.005 GWh
10 MWh0.01 GWh
20 MWh0.02 GWh
50 MWh0.05 GWh
100 MWh0.1 GWh
200 MWh0.2 GWh
500 MWh0.5 GWh
1000 MWh1 GWh

Common Megawatt-hour to Gigawatt-hour conversions

  • 1 MWh = 0.001 GWh
  • 2 MWh = 0.002 GWh
  • 3 MWh = 0.003 GWh
  • 4 MWh = 0.004 GWh
  • 5 MWh = 0.005 GWh
  • 6 MWh = 0.006 GWh
  • 7 MWh = 0.007 GWh
  • 8 MWh = 0.008 GWh
  • 9 MWh = 0.009 GWh
  • 10 MWh = 0.01 GWh
  • 12 MWh = 0.012 GWh
  • 15 MWh = 0.015 GWh
  • 20 MWh = 0.02 GWh
  • 25 MWh = 0.025 GWh
  • 30 MWh = 0.03 GWh
  • 40 MWh = 0.04 GWh
  • 50 MWh = 0.05 GWh
  • 60 MWh = 0.06 GWh
  • 75 MWh = 0.075 GWh
  • 100 MWh = 0.1 GWh
  • 150 MWh = 0.15 GWh
  • 200 MWh = 0.2 GWh
  • 250 MWh = 0.25 GWh
  • 300 MWh = 0.3 GWh
  • 500 MWh = 0.5 GWh
  • 750 MWh = 0.75 GWh
  • 1,000 MWh = 1 GWh

Common pairs of Energy

Megawatt-hour [MWh] to Gigawatt-hour [GWh] Converter

What is 1 MWh in GWh?
1 Megawatt-hour (MWh) equals 0.001 GWh, and 1 GWh equals 1,000 MWh.
How do I convert Megawatt-hour to Gigawatt-hour?
Divide by 1,000: 10 MWh ÷ 1,000 = 0.01 GWh. The converter above does it for any value, with the precision you choose.
What is 100 MWh in GWh?
100 MWh = 0.1 GWh. Common amounts are listed on this page, each with its own step-by-step page.
Is a Megawatt-hour bigger than a Gigawatt-hour?
No. 1 MWh is only 0.001 GWh: it takes 1,000 MWh to make 1 GWh.
Megawatt-hour to Gigawatt-hour Converter | UtilLab