## ››Convert watthour to terawatthour

 watthour terawatthour

How many watthour in 1 terawatthour? The answer is 1000000000000.
We assume you are converting between watthour and terawatthour.
You can view more details on each measurement unit:
watthour or terawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 0.00027777777777778 watthour, or 2.7777777777778E-16 terawatthour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between watthour and terawatthour.
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## ››Definition: Terawatthour

The SI prefix "tera" represents a factor of 1012, or in exponential notation, 1E12.

So 1 terawatthour = 1012 .

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