## ››Convert watthour to British thermal unit

 watthour British thermal unit

How many watthour in 1 British thermal unit? The answer is 0.29307108333333.
We assume you are converting between watthour and British thermal unit.
You can view more details on each measurement unit:
watthour or British thermal unit
The SI derived unit for energy is the joule.
1 joule is equal to 0.00027777777777778 watthour, or 0.00094781707774915 British thermal unit.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between watthour and Btus.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of watthour to British thermal unit

1 watthour to British thermal unit = 3.41214 British thermal unit

5 watthour to British thermal unit = 17.06071 British thermal unit

10 watthour to British thermal unit = 34.12141 British thermal unit

15 watthour to British thermal unit = 51.18212 British thermal unit

20 watthour to British thermal unit = 68.24283 British thermal unit

25 watthour to British thermal unit = 85.30354 British thermal unit

30 watthour to British thermal unit = 102.36424 British thermal unit

40 watthour to British thermal unit = 136.48566 British thermal unit

50 watthour to British thermal unit = 170.60707 British thermal unit

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You can do the reverse unit conversion from British thermal unit to watthour, or enter any two units below:

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## ››Definition: Btu

The British thermal unit (BTU or Btu) is a non-metric unit of energy, used in the United States and, to a lesser extent, the UK (where it isgenerally only used for heating systems). The SI unit is the joule (J), which is used by most other countries.

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