Convert 100 Gigawatt-hour to Millijoule (GWh to mJ)
Gigawatt-hour (GWh) and Millijoule (mJ) are both units of length. With the conversion form below, you can effortlessly and accurately convert gigawatt-hour to millijoule. This free online calculator tool makes it simple and easy to perform the conversion from GWh to mJ.

Gigawatt-hour (GWh) and Millijoule (mJ) are both units of length. With the conversion form above, you can effortlessly and accurately convert gigawatt-hour to millijoule. This free online calculator tool makes it simple and easy to perform the conversion from GWh to mJ.
All Unit Conversions
What is Gigawatt-hour to Millijoule Conversion?
Gigawatt-hour (GWh) and millijoule (mJ) are both units used to measure energy, but they serve different purposes depending on the scale of the measurement. If you ever need to convert gigawatt-hour to millijoule, knowing the exact conversion formula is essential.
GWh to mj Conversion Formula:
One Gigawatt-hour is equal to 3.6e+17 Millijoule.
Formula: 1 GWh = 3.6e+17 mJ
By using this conversion factor, you can easily convert any energy from gigawatt-hour to millijoule with precision.
How to Convert GWh to mJ?
Converting from GWh to mJ is a straightforward process. Follow these steps to ensure accurate conversions from gigawatt-hour to millijoule:
- Select the Gigawatt-hour Value: Start by determining the gigawatt-hour (GWh) value you want to convert into millijoule (mJ). This is your starting point.
- Multiply by the Conversion Factor: To convert gigawatt-hour to millijoule, multiply the selected GWh value by 3.6e+17. This factor is essential for accurately converting from a larger unit (GWh) to a much smaller unit (mJ).
- Illustration of Multiplication:
- 1 GWh = 3.6e+17 mJ
- 10 GWh = mJ
- 100 GWh = mJ
- Find the Conversion Result: The result of this multiplication is your converted value in millijoule unit. This represents the same energy but in a different unit.
- Save Your Millijoule Value: After converting, remember to save the result. This value represents the energy you initially measured, now expressed in millijoules.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the gigawatt-hour value by 2.777778e-16. This alternative method also gives you the correct energy in millijoules.
- Illustration of Division:
- mJ = gwh ÷ 2.777778e-16