In 1 watts there are 1.00000e-12 terawatts. Meanwhile in 1 terawatts there are 1,000,000,000,000 watts. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Terawatts to Watts calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert watts (W) to terawatts (TW), use this power conversion:
Conversion formula (W to TW):
Step-by-step:
Quick examples:
Use this watts to terawatts conversion when working with very large power values, like grid output or global energy use.
1 terawatt (TW) equals 1,000,000,000,000 watts (W). That’s 10¹² watts.
Divide watts by 1,000,000,000,000.
Formula: TW = W ÷ 10¹²
Use this direct conversion: TW = W × 10⁻¹²
It means you move the decimal point 12 places left.
Multiply terawatts by 1,000,000,000,000.
Formula: W = TW × 10¹²
A terawatt measures power, or the rate energy is used or produced. It’s used for very large power levels, like national electric demand or global energy use.
These units all measure power, just at different sizes:
1,000,000,000 W equals 0.001 TW.
Because 1 billion watts is 1 gigawatt, and 1,000 gigawatts equals 1 terawatt.
500,000,000,000 W equals 0.5 TW.
Half a terawatt is 500 billion watts.
Yes. The standard symbol is TW for terawatts and W for watts. Case matters, so use capital T and W.
Terawatts fit large-scale power numbers. They keep the figures short and easier to compare, like total grid output, national use, or global power demand.
It’s a conversion of power.
Energy uses units like watt-hours (Wh), kilowatt-hours (kWh), or joules (J). Power (W, TW) tells you the rate of energy use at a moment in time.
Use these checks:
Example: Convert 2,400,000,000,000 W to TW.
2,400,000,000,000 ÷ 1,000,000,000,000 = 2.4 TW
The Calculate Box tool to convert watts to terawatts uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a watts value in the box and have it instantly converted to terawatts.