A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work.
Terawatts to Zettawatts
Convert Terawatt (TW) to Zettawatt (ZW) instantly with an exact formula, conversion table, and FAQ.
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Convert terawatts (TW) to zettawatts (ZW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Zettawatt (ZW) equals 1e+21 watt(s), a scaled unit of electrical power used for zetta-scale electrical work.
ZW = TW × 1.000000e-09
Results update instantly for Terawatts to Zettawatts conversions.
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Formula
ZW = TW × 1.000000e-09
TW = ZW × 1.000000e+09
Conversion table
| 1 TW | 1.000000e-09 ZW |
| 5 TW | 5.000000e-09 ZW |
| 10 TW | 1.000000e-08 ZW |
| 20 TW | 2.000000e-08 ZW |
| 50 TW | 5.000000e-08 ZW |
| 100 TW | 1.000000e-07 ZW |
| 500 TW | 5.000000e-07 ZW |
| 1000 TW | 0.000001 ZW |
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How the formula works
Both terawatt and zettawatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in terawatts by 1.000000e-09 to get zettawatts. To reverse the conversion, multiply a zettawatt value by 1.000000e+09 to get back to terawatts.
Frequently asked questions
What is Terawatt (TW)?
A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work.
What is Zettawatt (ZW)?
A Zettawatt (ZW) equals 1e+21 watt(s), a scaled unit of electrical power used for zetta-scale electrical work.
How do I convert terawatts to zettawatts?
Multiply the terawatt value by 1.000000e-09 to get the equivalent in zettawatts. For example, 5 TW × 1.000000e-09 = 5.000000e-09 ZW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-09 is an exact, non-rounded value.
Can I convert zettawatts back to terawatts?
Yes. Divide the zettawatt value by 1.000000e-09, or multiply it by 1.000000e+09, to get terawatts.
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About converting terawatts to zettawatts
A Terawatt (TW) equals 1e+12 watt(s), a scaled unit of electrical power used for tera-scale electrical work. A Zettawatt (ZW) equals 1e+21 watt(s), a scaled unit of electrical power used for zetta-scale electrical work.
Use this calculator to move between terawatts and zettawatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.