Hectowatt is 100 watt units.
Hectowatts to Terawatts Converter — hW to TW
Convert Hectowatt (hW) to Terawatt (TW) using the exact conversion factor (1 hectowatt = 1e-10 terawatt). See the formula, worked examples, and conversion table.
Hectowatts to Terawatts 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.
Terawatt is 1000000000000 watt units.
Result = input x 100 / 1e+12.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Hectowatts to Terawatts
Hectowatt and Terawatt 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: Hectowatt is 100 watt units, and terawatt is 1000000000000 watt units.
Formula
terawatts = hectowatts × 1e-10
This factor comes from each unit's defined relationship to the category's base unit: 1 hectowatt equals 100 base units, and 1 terawatt equals 1e+12 base units, so dividing one by the other gives the direct hectowatt-to-terawatt factor of 1e-10.
Simple example
1 hW × 1e-10 = 1e-10 TW
1 hectowatt = 1e-10 terawatts.
Real-world example
120 hW × 1e-10 = 1.2e-8 TW
120 hectowatts = 1.2e-8 terawatts.
Conversion table
| Hectowatt (hW) | Terawatt (TW) |
|---|---|
| 1 hW | 1e-10 TW |
| 5 hW | 5e-10 TW |
| 12 hW | 1.2e-9 TW |
| 24 hW | 2.4e-9 TW |
| 120 hW | 1.2e-8 TW |
| 240 hW | 2.4e-8 TW |
Reverse conversion: Terawatt to Hectowatt
1e-10 TW × 10000000000 = 1 hW
1e-10 terawatts = 1 hectowatt.
hectowatts = terawatts × 10000000000
For a page dedicated to this direction, see Terawatt to Hectowatt.
Understanding the Hectowatt (hW)
Hectowatt is 100 watt units.
Understanding the Terawatt (TW)
Terawatt is 1000000000000 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many terawatts are in 1 hectowatt?
1 hectowatt equals 1e-10 terawatts, using the exact defined conversion factor rather than an estimate.
How do I convert hectowatt to terawatt?
Multiply the hectowatt value by 1e-10. The converter above does this instantly to whatever precision you set.
How do I convert terawatt back to hectowatt?
Use the reverse factor: 1 terawatt equals 10,000,000,000 hectowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectowatt?
Hectowatt (hW) is a unit of electricity.
What is a terawatt?
Terawatt (TW) is a unit of electricity.
Is the hectowatt to terawatt conversion exact?
Yes. Both hectowatt and terawatt are defined by fixed standards rather than physical artifacts, so the factor of 1e-10 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.