A Megawatt (MW) equals 1e+6 watt(s), a scaled unit of electrical power used for mega-scale electrical work.
Megawatts to Gigawatts
Convert Megawatt (MW) to Gigawatt (GW) instantly with an exact formula, conversion table, and FAQ.
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Convert megawatts (MW) to gigawatts (GW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work.
GW = MW × 0.001
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Formula
GW = MW × 0.001
MW = GW × 1000
Conversion table
| 1 MW | 0.001 GW |
| 5 MW | 0.005 GW |
| 10 MW | 0.01 GW |
| 20 MW | 0.02 GW |
| 50 MW | 0.05 GW |
| 100 MW | 0.1 GW |
| 500 MW | 0.5 GW |
| 1000 MW | 1 GW |
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How the formula works
Both megawatt and gigawatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in megawatts by 0.001 to get gigawatts. To reverse the conversion, multiply a gigawatt value by 1000 to get back to megawatts.
Frequently asked questions
What is Megawatt (MW)?
A Megawatt (MW) equals 1e+6 watt(s), a scaled unit of electrical power used for mega-scale electrical work.
What is Gigawatt (GW)?
A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work.
How do I convert megawatts to gigawatts?
Multiply the megawatt value by 0.001 to get the equivalent in gigawatts. For example, 5 MW × 0.001 = 0.005 GW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 0.001 is an exact, non-rounded value.
Can I convert gigawatts back to megawatts?
Yes. Divide the gigawatt value by 0.001, or multiply it by 1000, to get megawatts.
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About converting megawatts to gigawatts
A Megawatt (MW) equals 1e+6 watt(s), a scaled unit of electrical power used for mega-scale electrical work. A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work.
Use this calculator to move between megawatts and gigawatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.