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Gigawatt [GW] to Megawatt [MW] Converter

Quick Reference

1 Gigawatt (GW) = 1000 Megawatt (MW)

1 Megawatt (MW) = 0.001 Gigawatt (GW)

How to Convert Gigawatt to Megawatt

1 GW = 1000 MW
1 MW = 0.001 GW

To convert Gigawatt to Megawatt, multiply the value by 1000. To convert Megawatt back to Gigawatt, divide by 1000.

Example: convert 10 GW to MW:
10 GW = 10 x 1000 = 10000 MW

↔ Convert Megawatt to Gigawatt

Gigawatt

Definition: A gigawatt (GW) is a unit of power equal to one billion (10⁹) watts. It is a multiple of the base unit, the watt, in the International System of Units (SI).

History/origin: The watt is named in honor of Scottish inventor James Watt. The gigawatt, as a decimal multiple of the watt, was derived as a very large unit for measuring the power output of massive systems.

Current use: Gigawatts are used to measure the total power generation capacity of countries, very large power plants (like nuclear or hydroelectric), and global energy consumption trends. It's used for expressing power on a very large, macroscopic scale.

Megawatt

Definition: A megawatt (MW) is a unit of power equal to one million (10⁢) watts. It is a multiple of the base unit, the watt, in the International System of Units (SI).

History/origin: The watt is named in honor of Scottish inventor James Watt. The megawatt, as a decimal multiple of the watt, was derived as a larger unit for measuring very large amounts of power.

Current use: Megawatts are used to measure the power output of power plants, large industrial facilities, and the power consumption of cities. It is a convenient unit for expressing the scale of power generation and consumption on a large scale.

Gigawatt to Megawatt Conversion Table

Gigawatt [GW]Megawatt [MW]
1 GW1000 MW
2 GW2000 MW
5 GW5000 MW
10 GW10000 MW
20 GW20000 MW
50 GW50000 MW
100 GW100000 MW
200 GW200000 MW
500 GW500000 MW
1000 GW1000000 MW

Common pairs of Power

Watt

Watt to MilliwattWatt to KilowattWatt to MegawattWatt to Gigawatt

Milliwatt

Milliwatt to WattMilliwatt to KilowattMilliwatt to MegawattMilliwatt to Gigawatt

Kilowatt

Kilowatt to WattKilowatt to MilliwattKilowatt to MegawattKilowatt to Gigawatt

Megawatt

Megawatt to WattMegawatt to MilliwattMegawatt to KilowattMegawatt to Gigawatt

Gigawatt

Gigawatt to WattGigawatt to MilliwattGigawatt to KilowattGigawatt to Megawatt

Gigawatt [GW] to Megawatt [MW] Converter

To convert Gigawatt to Megawatt, enter your value in the GW field above and the result in MW will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your GW value by the fixed conversion ratio to get the equivalent in MW.
Our Gigawatt to Megawatt converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.
Yes, absolutely. Simply swap the source and destination units in the converter β€” select MW as your input unit and GW as your output unit. The same precision and standardized conversion factor applies in both directions.
Converting between Gigawatt and Megawatt comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.
Yes, the Gigawatt to Megawatt converter is completely free. No account or registration is required, and there are no usage limits. It works on any device β€” smartphones, tablets, and desktop computers β€” directly in your browser.
Gigawatt and Megawatt are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.