Gigawatt to Watt Converter
Convert gigawatts to watts (GW to W) instantly with this free online power converter. Enter any value in the Gigawatt field and get the equivalent in Watt immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 GW = 1000000000 W. To convert gigawatts to watts, multiply your Gigawatt value by 1000000000. For example, 10 GW = 1e+10 W. You can also reverse the calculation: 1 W = 1e-09 GW.
Quick conversion table
| Gigawatt (GW) | Watt (W) |
|---|---|
| 1 GW | 1000000000 W |
| 5 GW | 5000000000 W |
| 10 GW | 1e+10 W |
| 25 GW | 2.5e+10 W |
| 50 GW | 5e+10 W |
| 100 GW | 1e+11 W |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the power category.
Formula
Gigawatt to Watt conversion: 1 GW = 1000000000 W watts = gigawatts × 1000000000 1 W = 1e-09 GW gigawatts = watts × 1e-09
Example
Example: Convert 10 GW to W: 10 GW × 1000000000 = 1e+10 W So, 10 GW is about 1e+10 W. To convert back, multiply by 1e-09: 1e+10 W × 1e-09 = 10 GW.
How to Use
- Enter the value you want to convert in the Gigawatt field
- The result in Watt appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert gigawatts to watts?
Enter the value in Gigawatt (GW) in the 'From' field. The equivalent in Watt (W) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert GW to W?
1 GW = 1000000000 W, so watts = gigawatts × 1000000000. To convert back, 1 W = 1e-09 GW. The full formula and a worked example are shown on this page.
How many watts are in one Gigawatt?
1 GW = 1000000000 W.
Is this Gigawatt to Watt converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert watts back to gigawatts?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other power unit for either field.
How accurate is the GW to W conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.