To convert MW to GW, divide the megawatt value by 1,000. One megawatt equals 0.001 gigawatts, while 1 gigawatt equals exactly 1,000 megawatts. For example, 500 MW equals 0.5 GW, and 2,500 MW equals 2.5 GW.
Quick formula:
GW = MW ÷ 1,000
MW to GW Converter
Enter a power value to convert megawatts (MW) to gigawatts (GW), or switch the direction to convert GW back to MW.
MW to GW Conversion Table
| Megawatts (MW) | Gigawatts (GW) |
|---|---|
| 0.1 MW | 0.0001 GW |
| 1 MW | 0.001 GW |
| 5 MW | 0.005 GW |
| 10 MW | 0.01 GW |
| 20 MW | 0.02 GW |
| 25 MW | 0.025 GW |
| 50 MW | 0.05 GW |
| 75 MW | 0.075 GW |
| 100 MW | 0.1 GW |
| 200 MW | 0.2 GW |
| 250 MW | 0.25 GW |
| 300 MW | 0.3 GW |
| 400 MW | 0.4 GW |
| 500 MW | 0.5 GW |
| 600 MW | 0.6 GW |
| 750 MW | 0.75 GW |
| 800 MW | 0.8 GW |
| 900 MW | 0.9 GW |
| 1,000 MW | 1 GW |
| 1,500 MW | 1.5 GW |
| 2,000 MW | 2 GW |
| 2,500 MW | 2.5 GW |
| 3,000 MW | 3 GW |
| 5,000 MW | 5 GW |
| 10,000 MW | 10 GW |
| 50,000 MW | 50 GW |
How Do You Convert GW Back to MW?
To convert GW to MW, reverse the calculation and multiply the gigawatt value by 1,000. This conversion is also exact: one gigawatt always equals 1,000 megawatts under the SI system, regardless of whether the power comes from solar, batteries, wind, nuclear or another source.
Formula:
MW = GW × 1,000
How Do You Convert MW to GW Step by Step?
Converting megawatts to gigawatts requires only one operation: divide the MW value by 1,000. This works for small decimals, whole numbers and utility-scale capacities alike. Always keep MW and GW as power units; do not add hours unless you are intentionally converting power into energy.
Example 1: Convert 50 MW to GW
50 ÷ 1,000 = 0.05
50 MW = 0.05 GW
Example 2: Convert 100 MW to GW
100 ÷ 1,000 = 0.1
100 MW = 0.1 GW
Example 3: Convert 500 MW to GW
500 ÷ 1,000 = 0.5
500 MW = 0.5 GW
Example 4: Convert 1,000 MW to GW
1,000 ÷ 1,000 = 1
1,000 MW = 1 GW
Example 5: Convert 2,500 MW to GW
2,500 ÷ 1,000 = 2.5
2,500 MW = 2.5 GW
For more background on what MW represents in real electricity systems, see Avepower's guide to what a megawatt means in power, solar and battery projects
What Are MW and GW?
MW and GW are both units of power, meaning they describe the rate at which energy is generated, transferred or consumed at a particular moment. A megawatt equals one million watts, while a gigawatt equals one billion watts, making a gigawatt exactly 1,000 times larger.
According to the International System of Units:
| Unit | Symbol | Watts | Typical Scale |
|---|---|---|---|
| Watt | W | 1 | Small electrical loads |
| Kilowatt | kW | 1,000 | Homes, small solar systems |
| Megawatt | MW | 1,000,000 | C&I systems, plants, solar farms |
| Gigawatt | GW | 1,000,000,000 | Large generation fleets and grids |
Real-World MW to GW Example: Utility-Scale Battery Storage
Individual battery facilities are often reported in MW, while statewide or national portfolios are reported in GW. Converting both to the same unit makes system scale easier to compare without changing the underlying power rating.
According to the U.S. Energy Information Administration, U.S. operational utility-scale battery storage reached nearly 52 GW during the first half of 2026. In MW:
52 × 1,000 = 52,000 MW
The Bellefield Solar and Energy Storage Farm includes 500 MW of battery storage power. Converting that facility to GW:
500 ÷ 1,000 = 0.5 GW
That means approximately:
104 Bellefield-sized 500 MW power blocks would equal 52 GW of rated power.
Conclusion
Converting MW to GW is straightforward: divide megawatts by 1,000. The more important professional distinction is knowing when the conversion is valid—MW and GW both measure power, while MWh and GWh measure energy and require a time component.
For solar, commercial or battery storage projects, however, power alone does not determine the correct system. Engineers must also consider stored energy, operating duration, inverter or PCS ratings, voltage platform, communications, protection strategy and the site's actual load profile.
Avepower develops residential, commercial and high-voltage LiFePO₄ storage systems for installers, distributors, EPC partners and project developers. Its published project portfolio includes residential systems through multi-cabinet commercial and high-voltage configurations. Explore Avepower energy-storage case studies Avepower
For technical due diligence, buyers can also review Avepower's certification documentation, including CE, UL-related, RoHS, UN38.3 and quality-system documentation available for applicable products and projects.
Planning a commercial solar-storage or high-voltage ESS project? Share your required kW/MW power, kWh/MWh energy, voltage platform, inverter or PCS model and operating scenario with Avepower to evaluate a suitable battery configuration.
FAQ
1 MW equals 0.001 GW.
100 MW ÷ 1,000 = 0.1 GW.
500 MW ÷ 1,000 = 0.5 GW.
Yes. One gigawatt is 1,000 times larger than one megawatt.
No. MW measures instantaneous power, while MWh measures energy over time.
1 GW = 1,000,000,000 watts.
