Gigawatt is 1000000000 watt units.
Gigawatts to Hectowatts Converter — GW to hW
Convert Gigawatt (GW) to Hectowatt (hW) using the exact conversion factor (1 gigawatt = 10,000,000 hectowatt). See the formula, worked examples, and conversion table.
Gigawatts to Hectowatts converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Hectowatt is 100 watt units.
Result = input x 1e+9 / 100.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Gigawatts to Hectowatts
Gigawatt and Hectowatt both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Gigawatt is 1000000000 watt units, and hectowatt is 100 watt units.
Formula
hectowatts = gigawatts × 10000000
This factor comes from each unit's defined relationship to the category's base unit: 1 gigawatt equals 1000000000 base units, and 1 hectowatt equals 100 base units, so dividing one by the other gives the direct gigawatt-to-hectowatt factor of 10000000.
Simple example
1 GW × 10000000 = 10,000,000 hW
1 gigawatt = 10,000,000 hectowatts.
Real-world example
120 GW × 10000000 = 1,200,000,000 hW
120 gigawatts = 1,200,000,000 hectowatts.
Conversion table
| Gigawatt (GW) | Hectowatt (hW) |
|---|---|
| 1 GW | 10,000,000 hW |
| 5 GW | 50,000,000 hW |
| 12 GW | 120,000,000 hW |
| 24 GW | 240,000,000 hW |
| 120 GW | 1,200,000,000 hW |
| 240 GW | 2,400,000,000 hW |
Reverse conversion: Hectowatt to Gigawatt
1 hW × 1e-7 = 1e-7 GW
1 hectowatt = 1e-7 gigawatts.
gigawatts = hectowatts × 1e-7
For a page dedicated to this direction, see Hectowatt to Gigawatt.
Understanding the Gigawatt (GW)
Gigawatt is 1000000000 watt units.
Understanding the Hectowatt (hW)
Hectowatt is 100 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectowatts are in 1 gigawatt?
1 gigawatt equals 10,000,000 hectowatts, using the exact defined conversion factor rather than an estimate.
How do I convert gigawatt to hectowatt?
Multiply the gigawatt value by 10000000. The converter above does this instantly to whatever precision you set.
How do I convert hectowatt back to gigawatt?
Use the reverse factor: 1 hectowatt equals 1e-7 gigawatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigawatt?
Gigawatt (GW) is a unit of electricity.
What is a hectowatt?
Hectowatt (hW) is a unit of electricity.
Is the gigawatt to hectowatt conversion exact?
Yes. Both gigawatt and hectowatt are defined by fixed standards rather than physical artifacts, so the factor of 10000000 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.