Select a category and enter your values below
To convert from Gigawatt (GW) to Watt (W), use the following formula:
Watt (W)
= 109× Gigawatt (GW)
Let's convert 5 Gigawatt (GW) to Watt (W).
Using the formula:
5 × 109 = 5000000000
Therefore, 5 Gigawatt (GW) is equal to 5000000000 Watt (W).
How many gigawatts are in one watt? One Watt (W) contains 10-9 Gigawatts (GW) — the inverse of the factor above. Multiplying by 109 takes you from gigawatts to watts; multiplying by 10-9 brings you back.
Put in words: one gigawatt equals 109 watts, so the gigawatt is the larger unit of this pair. Converting between them never changes the amount of power being measured — only the size of the unit you count it in.
A Gigawatt (GW) is a unit of power equal to one billion watts (109 W) or 1,000 megawatts.
It represents a significant amount of energy. To visualize this scale, a single gigawatt is roughly the amount of power generated by one large nuclear power plant.
This level of power is sufficient to supply electricity to hundreds of thousands of homes simultaneously.
The gigawatt is a standard unit for measuring the output of large-scale power generation facilities and national energy grids.
The capacity of major power sources is typically measured in gigawatts, including:
For example, a major offshore wind farm can have a generating capacity of over 1 GW, highlighting its importance in renewable energy planning and infrastructure development.
The term "gigawatt" gained widespread recognition through the classic 1985 film Back to the Future.
The iconic line "1.21 gigawatts!," delivered by Dr. Emmett Brown, refers to the immense power needed for the DeLorean time machine.
While often mispronounced as "jigowatt" in the movie, this famous quote introduced a massive audience to this unit of electrical power, cementing its place in popular culture.
A watt (W) is the basic unit of power used to measure the rate of energy transfer.
In simple terms, it tells you how much energy a device uses per second. For example, a 60-watt light bulb uses 60 joules of energy every second.
In electrical systems, the formula is Watts = Volts × Amps.
The unit of power, the watt (W), is named in honor of James Watt, an 18th-century Scottish inventor and engineer.
His groundbreaking improvements to the steam engine were a key part of the Industrial Revolution. Naming the unit after him honors his major contributions to energy science.
Formally, a watt is defined as the rate of energy transfer equal to one joule per second.
In electrical systems, one watt is the power produced when a current of one ampere (A) flows through an electrical potential difference of one volt (V).
This fundamental relationship is a cornerstone of electrical engineering.
The relationship between power (P), voltage (V), and current (I) is expressed by the simple formula:
P = V × I
Where:
Understanding watts helps you see how much energy your common devices consume.
This is essential for comparing the energy efficiency of appliances and understanding your electricity bill. Here are some practical examples:
By checking the wattage on your devices, you can get a better sense of which ones use the most power in your home.
Here are some quick reference conversions from Gigawatt (GW) to Watt (W):
| Gigawatts | Watts |
|---|---|
| 0.000001 GW | 1000 W |
| 0.001 GW | 106 W |
| 0.1 GW | 108 W |
| 1 GW | 109 W |
| 2 GW | 2000000000 W |
| 3 GW | 3000000000 W |
| 4 GW | 4000000000 W |
| 5 GW | 5000000000 W |
| 6 GW | 6000000000 W |
| 7 GW | 7000000000 W |
| 8 GW | 8000000000 W |
| 9 GW | 9000000000 W |
| 10 GW | 1010 W |
| 20 GW | 20000000000 W |
| 30 GW | 30000000000 W |
| 40 GW | 40000000000 W |
| 50 GW | 50000000000 W |
| 100 GW | 1011 W |
| 1000 GW | 1012 W |
| 10000 GW | 1013 W |