Direct conversion
Convert gigawatt [GW] to terawatt [TW] instantly with formula, examples, chart, and FAQs.
1 gigawatt [GW] = 0.001 terawatt [TW]
1 gigawatt [GW] = 0.001 terawatt [TW]
Example: 1 gigawatt [GW] equals 0.001 terawatt [TW].
Power conversions use watt as the reference unit and include mechanical horsepower, electrical power, and heat-rate units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
The gigawatt (GW) is a power unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse gigawatt when comparing power values, checking specifications, converting between systems, or preparing quick estimates.
The terawatt (TW) is a power unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse terawatt when comparing power values, checking specifications, converting between systems, or preparing quick estimates.
| gigawatt [GW] | terawatt [TW] |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1000 | 1 |
Use this formula: 1 gigawatt [GW] = 0.001 terawatt [TW] Enter your value in the calculator and the result updates instantly.
1 gigawatt [GW] equals 0.001 terawatt [TW].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.