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Watt-hour [Wh] to Gigawatt-hour [GWh] Converter

Quick Reference

1 Watt-hour (Wh) = 1.0000e-9 Gigawatt-hour (GWh)

1 Gigawatt-hour (GWh) = 1000000000 Watt-hour (Wh)

How to Convert Watt-hour to Gigawatt-hour

1 Wh = 1.0000e-9 GWh
1 GWh = 1000000000 Wh

To convert Watt-hour to Gigawatt-hour, divide the value by 1000000000 (equivalently, multiply by 1.0000e-9). To convert Gigawatt-hour back to Watt-hour, multiply by 1000000000.

Example: convert 10 Wh to GWh:
10 Wh = 10 x 1.0000e-9 = 1.0000e-8 GWh

↔ Convert Gigawatt-hour to Watt-hour

Watt-hour

Definition: A watt-hour (symbol Wh) is a unit of energy equal to one watt of power sustained for one hour. It is commonly used to measure electrical energy consumption.

History/origin: The watt-hour is derived from the watt, the SI unit of power, and the hour, a unit of time. It was developed alongside the increasing use of electricity in the late 19th and early 20th centuries.

Current use: Watt-hours are commonly used to measure the energy capacity of batteries, the energy consumption of household appliances, and the amount of electricity generated or consumed by power plants and consumers.

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.

Watt-hour to Gigawatt-hour Conversion Table

Watt-hour [Wh]Gigawatt-hour [GWh]
1 Wh1.0000e-9 GWh
2 Wh2.0000e-9 GWh
5 Wh5.0000e-9 GWh
10 Wh1.0000e-8 GWh
20 Wh2.0000e-8 GWh
50 Wh5.0000e-8 GWh
100 Wh1.0000e-7 GWh
200 Wh2.0000e-7 GWh
500 Wh5.0000e-7 GWh
1000 Wh1.0000e-6 GWh

Common Watt-hour to Gigawatt-hour conversions

  • 1 Wh = 0.000000001 GWh
  • 2 Wh = 0.000000002 GWh
  • 3 Wh = 0.000000003 GWh
  • 4 Wh = 0.000000004 GWh
  • 5 Wh = 0.000000005 GWh
  • 6 Wh = 0.000000006 GWh
  • 7 Wh = 0.000000007 GWh
  • 8 Wh = 0.000000008 GWh
  • 9 Wh = 0.000000009 GWh
  • 10 Wh = 0.00000001 GWh
  • 12 Wh = 0.000000012 GWh
  • 15 Wh = 0.000000015 GWh
  • 20 Wh = 0.00000002 GWh
  • 25 Wh = 0.000000025 GWh
  • 30 Wh = 0.00000003 GWh
  • 40 Wh = 0.00000004 GWh
  • 50 Wh = 0.00000005 GWh
  • 60 Wh = 0.00000006 GWh
  • 75 Wh = 0.000000075 GWh
  • 100 Wh = 0.0000001 GWh
  • 150 Wh = 0.00000015 GWh
  • 200 Wh = 0.0000002 GWh
  • 250 Wh = 0.00000025 GWh
  • 300 Wh = 0.0000003 GWh
  • 500 Wh = 0.0000005 GWh
  • 750 Wh = 0.00000075 GWh
  • 1,000 Wh = 0.000001 GWh

Common pairs of Energy

Watt-hour [Wh] to Gigawatt-hour [GWh] Converter

What is 1 Wh in GWh?
1 Watt-hour (Wh) equals 0.000000001 GWh, and 1 GWh equals 1,000,000,000 Wh.
How do I convert Watt-hour to Gigawatt-hour?
Divide by 1,000,000,000: 10 Wh ÷ 1,000,000,000 = 0.00000001 GWh. The converter above does it for any value, with the precision you choose.
What is 100 Wh in GWh?
100 Wh = 0.0000001 GWh. Common amounts are listed on this page, each with its own step-by-step page.
Is a Watt-hour bigger than a Gigawatt-hour?
No. 1 Wh is only 0.000000001 GWh: it takes 1,000,000,000 Wh to make 1 GWh.
Watt-hour to Gigawatt-hour Converter | UtilLab