Power and Energy
MWtoGW
Convert megawatts (MW) to gigawatts (GW).
Factor1 MW = 0.001 GW
Converter
MW
Accepts numbers or expressions, e.g. 150 + 14.7
Result
GW
Rendered to 6 significant figures.
Formula
Formula
GW = MW × 0.001
Multiply any value in megawatts by 0.001 to obtain the value in gigawatts.
Worked example
Convert 1000 MW to GW.
- 01Start with 1000 MW.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 GW.
Result1000 MW = 1 GW
Conversion table
| MW | GW |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from MW to GW?
1 MW equals 0.001 GW. To convert, multiply the value in megawatts by 0.001.
How do I convert 1 MW to GW?
1 MW = 0.001 GW. For any value, multiply by 0.001.
How do I convert GW back to MW?
Divide by the same factor — or equivalently, multiply by 1000. So 1 GW = 1000 MW.
When would I need to convert megawatt to gigawatt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).