Convert watts to GW
Watts to gigawatts. Enter a value to convert, or use the watts to GW chart further down the page.
1 watt equals 1e-9 gigawatts. Going the other way, 1 gigawatt = 1,000,000,000 watts.
How to convert watts to GW
To convert watts to gigawatts, multiply the watt value by 1e-9. You can also divide by 1000000000 to get the same answer.
GW = W × 1e-9
Worked example
Convert 15 W to gigawatts:
15 W = 1.5e-8 GW
watts to GW conversion chart
Use this watts to GW table for quick reference without typing anything.
| watts (W) | gigawatts (GW) |
|---|---|
| 0.01 W | 1e-11 GW |
| 0.1 W | 1e-10 GW |
| 1 W | 1e-9 GW |
| 2 W | 2e-9 GW |
| 3 W | 3e-9 GW |
| 5 W | 5e-9 GW |
| 10 W | 1e-8 GW |
| 20 W | 2e-8 GW |
| 50 W | 5e-8 GW |
| 100 W | 0.0000001 GW |
| 1,000 W | 0.000001 GW |
What is a watt?
The watt is the SI unit of power: one joule per second.
What is a gigawatt?
The gigawatt (GW) is a unit of power equal to 1000000000 watts.
Frequently asked questions
How many GW are in a watt?
1 watts equals 1e-9 GW. Going the other way, 1 GW is 1,000,000,000 watts.
How do you convert watts to GW?
To convert watts to gigawatts, multiply the watt value by 1e-9. You can also divide by 1000000000 to get the same answer.
What is 10 watts in GW?
10 watts equals 1e-8 GW. The conversion chart on this page lists the other values people look up most often.
Related power conversions
Convert watts to other units
Convert other units to GW
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