The gigawatt conversion selector here selects the power measurement unit to convert to starting from gigawatts (GW). To make a conversion starting from a unit of power other than gigawatt, simply click on the "Reset" button.
The gigawatt is a unit of power equal to 109 watts (1 GW = 109 W), the derived unit of power in the International System of Units (SI).
The gigawatt (GW) is also equal to 1012 milliwatts (mW), or 1015 microwatts (μW), or 1,000,000 kilowatts (kW), or 1,000 megawatts (MW) or 0.001 terawatts (TW).
1 GW = 109 W = 109 J/s = 109 N×m/s = 109 kg×m2/s3