Skip to content

Gigawatt [GW] to Watt [W] Converter

Quick Reference

1 Gigawatt (GW) = 1000000000 Watt (W)

1 Watt (W) = 1.0000e-9 Gigawatt (GW)

How to Convert Gigawatt to Watt

1 GW = 1000000000 W
1 W = 1.0000e-9 GW

To convert Gigawatt to Watt, multiply the value by 1000000000. To convert Watt back to Gigawatt, divide by 1000000000.

Example: convert 10 GW to W:
10 GW = 10 x 1000000000 = 1.0000e+10 W

↔ Convert Watt 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.

Watt

Definition: The watt (W) is the derived unit of power in the International System of Units (SI). It is defined as one joule per second and represents the rate at which energy is transferred or converted.

History/origin: The watt is named in honor of Scottish inventor James Watt, who significantly improved the steam engine. The unit was adopted by the Second Congress of the British Association for the Advancement of Science in 1882.

Current use: Watts are used universally to measure power consumption and generation in electrical and mechanical systems. It is a fundamental unit for specifying the power rating of appliances, light bulbs, and engines.

Gigawatt to Watt Conversion Table

Gigawatt [GW]Watt [W]
1 GW1000000000 W
2 GW2000000000 W
5 GW5000000000 W
10 GW10000000000 W
20 GW20000000000 W
50 GW50000000000 W
100 GW100000000000 W
200 GW200000000000 W
500 GW500000000000 W
1000 GW1.0000e+12 W

Common Gigawatt to Watt conversions

  • 1 GW = 1,000,000,000 W
  • 2 GW = 2,000,000,000 W
  • 3 GW = 3,000,000,000 W
  • 4 GW = 4,000,000,000 W
  • 5 GW = 5,000,000,000 W
  • 6 GW = 6,000,000,000 W
  • 7 GW = 7,000,000,000 W
  • 8 GW = 8,000,000,000 W
  • 9 GW = 9,000,000,000 W
  • 10 GW = 10,000,000,000 W
  • 12 GW = 12,000,000,000 W
  • 15 GW = 15,000,000,000 W
  • 20 GW = 20,000,000,000 W
  • 25 GW = 25,000,000,000 W
  • 30 GW = 30,000,000,000 W
  • 40 GW = 40,000,000,000 W
  • 50 GW = 50,000,000,000 W
  • 60 GW = 60,000,000,000 W
  • 75 GW = 75,000,000,000 W
  • 100 GW = 100,000,000,000 W
  • 150 GW = 150,000,000,000 W
  • 200 GW = 200,000,000,000 W
  • 250 GW = 250,000,000,000 W
  • 300 GW = 300,000,000,000 W
  • 500 GW = 500,000,000,000 W
  • 750 GW = 750,000,000,000 W
  • 1,000 GW = 1,000,000,000,000 W

Gigawatt [GW] to Watt [W] Converter

What is 1 GW in W?
1 Gigawatt (GW) equals 1,000,000,000 W, and 1 W equals 0.000000001 GW.
How do I convert Gigawatt to Watt?
Multiply by 1,000,000,000: 10 GW × 1,000,000,000 = 10,000,000,000 W. The converter above does it for any value, with the precision you choose.
What is 100 GW in W?
100 GW = 100,000,000,000 W. Common amounts are listed on this page, each with its own step-by-step page.
Is a Gigawatt bigger than a Watt?
Yes. 1 GW = 1,000,000,000 W, so the same quantity becomes a larger number when written in W.
Gigawatt to Watt Converter | UtilLab