Convert Gigawatts to Megawatts
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Keyboard shortcut: press S to swap units.
Contextual examples
- 1 Gigawatts = 1,000 Megawatts
- 10 Gigawatts = 10,000 Megawatts
- 100 Gigawatts = 100,000 Megawatts
- 1000 Gigawatts = 1,000,000 Megawatts
How many gigawatts in a megawatts?
In 1 gigawatts there are 1,000 megawatts. Meanwhile in 1 megawatts there are 0.001 gigawatts. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Megawatts to Gigawatts calculator above to convert any number.
* Values rounded to 6 decimal places for readability
How to convert gigawatts to megawatts?
To convert gigawatts (GW) to megawatts (MW), use this fixed scale:
- 1 gigawatt = 1,000 megawatts
- MW = GW × 1,000
Quick examples
- 2 GW = 2 × 1,000 = 2,000 MW
- 0.75 GW = 0.75 × 1,000 = 750 MW
- 12.4 GW = 12.4 × 1,000 = 12,400 MW
Tip: This works because both units measure power in watts, and the prefixes set the size (giga = 10⁹, mega = 10⁶).
Frequently asked questions
How many megawatts are in a gigawatt?
One gigawatt equals 1,000 megawatts.
1 GW = 1,000 MW
How do you convert gigawatts to megawatts?
Multiply the gigawatt value by 1,000.
Example: 2.5 GW × 1,000 = 2,500 MW
What’s the formula for GW to MW?
Use this simple formula:
MW = GW × 1,000
How do you convert megawatts to gigawatts?
Divide the megawatt value by 1,000.
Example: 7,500 MW ÷ 1,000 = 7.5 GW
What’s the difference between a gigawatt and a megawatt?
A megawatt is a unit of power equal to 1,000,000 watts.
A gigawatt is larger. It equals 1,000 megawatts, or 1,000,000,000 watts.
Gigawatts often describe grid-scale power, while megawatts fit single plants.
Are gigawatts and megawatts units of power or energy?
They measure power, not energy. Power is a rate, like speed.
Energy adds time, like miles driven. For energy, you’ll see MWh or GWh.
How many watts are in a gigawatt and a megawatt?
These conversions can help with quick checks:
- 1 MW = 1,000,000 W
- 1 GW = 1,000,000,000 W
Why do power plants use megawatts and gigawatts?
Power plants, wind farms, and solar farms produce large amounts of power.
Megawatts work well for a single site. Gigawatts fit totals across regions.
Using bigger units keeps numbers short and easy to compare.
Can I convert GW to MW for electricity generation capacity?
Yes. The GW to MW conversion is common for capacity ratings.
Example: a 1.2 GW plant has 1,200 MW of capacity.
Capacity is the maximum output under set conditions.
Does the GW to MW conversion change for AC vs DC power?
No. The unit conversion stays the same because it’s math.
AC and DC can affect how power is measured and delivered, but not the factor.
1 GW is always 1,000 MW.
What are common examples of gigawatts and megawatts?
These rough examples help with scale (values vary by site):
- A large wind turbine: a few MW
- A utility solar farm: tens to hundreds of MW
- A large power station or a regional grid total: GW ranges
What’s a quick way to estimate GW to MW in your head?
Move the decimal three places to the right and add zeros if needed.
- 0.8 GW = 800 MW
- 3 GW = 3,000 MW
- 0.05 GW = 50 MW
Related calculators
How does this converter work?
The Calculate Box tool to convert gigawatts to megawatts uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a gigawatts value in the box and have it instantly converted to megawatts.