The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
Watts to Terawatts
Convert Watt (W) to Terawatt (TW) instantly with an exact formula, conversion table, and FAQ.
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Convert watts (W) to terawatts (TW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work.
TW = W × 1.000000e-12
Results update instantly for Watts to Terawatts conversions.
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Formula
TW = W × 1.000000e-12
W = TW × 1.000000e+12
Conversion table
| 1 W | 1.000000e-12 TW |
| 5 W | 5.000000e-12 TW |
| 10 W | 1.000000e-11 TW |
| 20 W | 2.000000e-11 TW |
| 50 W | 5.000000e-11 TW |
| 100 W | 1.000000e-10 TW |
| 500 W | 5.000000e-10 TW |
| 1000 W | 1.000000e-09 TW |
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How the formula works
Both watt and terawatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in watts by 1.000000e-12 to get terawatts. To reverse the conversion, multiply a terawatt value by 1.000000e+12 to get back to watts.
Frequently asked questions
What is Watt (W)?
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
What is Terawatt (TW)?
A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work.
How do I convert watts to terawatts?
Multiply the watt value by 1.000000e-12 to get the equivalent in terawatts. For example, 5 W × 1.000000e-12 = 5.000000e-12 TW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-12 is an exact, non-rounded value.
Can I convert terawatts back to watts?
Yes. Divide the terawatt value by 1.000000e-12, or multiply it by 1.000000e+12, to get watts.
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About converting watts to terawatts
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second. A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work.
Use this calculator to move between watts and terawatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.