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Milliwatt-hour [mWh] to Gigawatt-hour [GWh] Converter

Quick Reference

1 Milliwatt-hour (mWh) = 1.0000e-12 Gigawatt-hour (GWh)

1 Gigawatt-hour (GWh) = 1.0000e+12 Milliwatt-hour (mWh)

How to Convert Milliwatt-hour to Gigawatt-hour

1 mWh = 1.0000e-12 GWh
1 GWh = 1.0000e+12 mWh

To convert Milliwatt-hour to Gigawatt-hour, divide the value by 1.0000e+12 (equivalently, multiply by 1.0000e-12). To convert Gigawatt-hour back to Milliwatt-hour, multiply by 1.0000e+12.

Example: convert 10 mWh to GWh:
10 mWh = 10 x 1.0000e-12 = 1.0000e-11 GWh

↔ Convert Gigawatt-hour to Milliwatt-hour

Milliwatt-hour

Definition: A milliwatt-hour (symbol mWh) is a unit of energy equal to one-thousandth of a watt-hour. It represents a very small amount of energy.

History/origin: The milliwatt-hour is a derivative of the watt-hour, using the SI prefix 'milli-' to denote a factor of one-thousandth.

Current use: Milliwatt-hours are used in applications involving low-power electronics, such as sensors, small batteries, and medical devices.

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.

Milliwatt-hour to Gigawatt-hour Conversion Table

Milliwatt-hour [mWh]	Gigawatt-hour [GWh]
1 mWh	1.0000e-12 GWh
2 mWh	2.0000e-12 GWh
5 mWh	5.0000e-12 GWh
10 mWh	1.0000e-11 GWh
20 mWh	2.0000e-11 GWh
50 mWh	5.0000e-11 GWh
100 mWh	1.0000e-10 GWh
200 mWh	2.0000e-10 GWh
500 mWh	5.0000e-10 GWh
1000 mWh	1.0000e-9 GWh

Common Milliwatt-hour to Gigawatt-hour conversions

1 mWh = 1.000000e-12 GWh
2 mWh = 2.000000e-12 GWh
3 mWh = 3.000000e-12 GWh
4 mWh = 4.000000e-12 GWh
5 mWh = 5.000000e-12 GWh
6 mWh = 6.000000e-12 GWh
7 mWh = 7.000000e-12 GWh
8 mWh = 8.000000e-12 GWh
9 mWh = 9.000000e-12 GWh
10 mWh = 1.000000e-11 GWh
12 mWh = 1.200000e-11 GWh
15 mWh = 1.500000e-11 GWh
20 mWh = 2.000000e-11 GWh
25 mWh = 2.500000e-11 GWh
30 mWh = 3.000000e-11 GWh
40 mWh = 4.000000e-11 GWh
50 mWh = 5.000000e-11 GWh
60 mWh = 6.000000e-11 GWh
75 mWh = 7.500000e-11 GWh
100 mWh = 1.000000e-10 GWh
150 mWh = 1.500000e-10 GWh
200 mWh = 2.000000e-10 GWh
250 mWh = 2.500000e-10 GWh
300 mWh = 3.000000e-10 GWh
500 mWh = 5.000000e-10 GWh
750 mWh = 7.500000e-10 GWh
1,000 mWh = 0.000000001 GWh

Common pairs of Energy

Watt-hour

Watt-hour to Milliwatt-hour Watt-hour to Kilowatt-hour Watt-hour to Megawatt-hour Watt-hour to Gigawatt-hour Watt-hour to Joule

Milliwatt-hour

Milliwatt-hour to Watt-hour Milliwatt-hour to Kilowatt-hour Milliwatt-hour to Megawatt-hour Milliwatt-hour to Gigawatt-hour Milliwatt-hour to Joule

Kilowatt-hour

Kilowatt-hour to Watt-hour Kilowatt-hour to Milliwatt-hour Kilowatt-hour to Megawatt-hour Kilowatt-hour to Gigawatt-hour Kilowatt-hour to Joule

Megawatt-hour

Megawatt-hour to Watt-hour Megawatt-hour to Milliwatt-hour Megawatt-hour to Kilowatt-hour Megawatt-hour to Gigawatt-hour Megawatt-hour to Joule

Gigawatt-hour

Gigawatt-hour to Watt-hour Gigawatt-hour to Milliwatt-hour Gigawatt-hour to Kilowatt-hour Gigawatt-hour to Megawatt-hour Gigawatt-hour to Joule

Joule

Joule to Watt-hour Joule to Milliwatt-hour Joule to Kilowatt-hour Joule to Megawatt-hour Joule to Gigawatt-hour

Kilojoule

Kilojoule to Watt-hour Kilojoule to Milliwatt-hour Kilojoule to Kilowatt-hour Kilojoule to Megawatt-hour Kilojoule to Gigawatt-hour

Milliwatt-hour [mWh] to Gigawatt-hour [GWh] Converter

What is 1 mWh in GWh?

1 Milliwatt-hour (mWh) equals 1.000000e-12 GWh, and 1 GWh equals 1,000,000,000,000 mWh.

How do I convert Milliwatt-hour to Gigawatt-hour?

Divide by 1,000,000,000,000: 10 mWh ÷ 1,000,000,000,000 = 1.000000e-11 GWh. The converter above does it for any value, with the precision you choose.

What is 100 mWh in GWh?

100 mWh = 1.000000e-10 GWh. Common amounts are listed on this page, each with its own step-by-step page.

Is a Milliwatt-hour bigger than a Gigawatt-hour?

No. 1 mWh is only 1.000000e-12 GWh: it takes 1,000,000,000,000 mWh to make 1 GWh.

Milliwatt-hour to Gigawatt-hour Converter | UtilLab