Power and Energy
GWtoW
Convert gigawatts (GW) to watts (W).
Factor1 GW = 1e+9 W
Converter
GW
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W
Rendered to 6 significant figures.
Formula
Formula
W = GW × 1e+9
Multiply any value in gigawatts by 1e+9 to obtain the value in watts.
Worked example
Convert 1 GW to W.
- 01Start with 1 GW.
- 02Multiply by the conversion factor: 1 × 1e+9 = 1e+9 W.
Result1 GW = 1e+9 W
Conversion table
| GW | W |
|---|---|
| 1 | 1e+9 |
| 2 | 2e+9 |
| 5 | 5e+9 |
| 10 | 1e+10 |
| 20 | 2e+10 |
| 50 | 5e+10 |
| 100 | 1e+11 |
| 200 | 2e+11 |
| 500 | 5e+11 |
| 1000 | 1e+12 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from GW to W?
1 GW equals 1e+9 W. To convert, multiply the value in gigawatts by 1e+9.
How do I convert 1 GW to W?
1 GW = 1e+9 W. For any value, multiply by 1e+9.
How do I convert W back to GW?
Divide by the same factor — or equivalently, multiply by 1e-9. So 1 W = 1e-9 GW.
When would I need to convert gigawatt to watt?
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).