# Joules to watt hours (J to Wh)

energy conversions » joule conversions » J to Wh## Joules to watt hours conversion table (chart)

The conversion table to the right is a default, short version of the joules to watt hours conversion table. You also have an option to create the joules to watt hours conversion table for the specific values you need. You can choose the initial value (in joules), the increment and the number of rows you want to show up in the conversion table.To create your customized joules to watt hours conversion table, click on the 'create conversion table' button.

joule (J) | watt hour (Wh) |

10 | 0.0027777777777778 |

20 | 0.0055555555555556 |

30 | 0.0083333333333333 |

40 | 0.011111111111111 |

50 | 0.013888888888889 |

60 | 0.016666666666667 |

70 | 0.019444444444444 |

80 | 0.022222222222222 |

## Conversion Formula

By using the online converter calculator on this page, you can calculate how many watt hours are in 'X' joules (X is the number of joules you want to convert to watt hours). In order to convert a value from joules to watt hours (from J to Wh) simply type the number of joules to be converted to watt hours and then click on the 'convert' button. The formula used for converting a specific value from joules to watt hours is:

X joules * cf = Y watt hours

where

X = the specific value to be converted (in joules)

cf = the conversion factor from joules to watt hours

Y = the result (in watt hours)

*Example*

Let's suppose that you have a value of energy of 399 joules and want to express it in watt hours.

399 J = (399 × 0.00027777777777778) Wh

399 J = 0.11083333333333 Wh

## Conversion factor

1 joule is equal to 0.00027777777777778 watt hour

(1 J = 0.00027777777777778 Wh )

## Related topics

- To convert from joules to any other energy unit, go to convert from joules
- To convert from a unit of energy other than joule, go to all energy conversions
- If you want to do the reverse unit conversion from
**watt hours to joules**, go to convert watt hours to joules