# Electronvolts to Watt-hours Conversion

Enter the energy in electronvolts below to get the value converted to watt-hours.

**Results in Watt-hours:**

## How to Convert Electronvolts to Watt-hours

To convert an electronvolt measurement to a watt-hour measurement, multiply the energy by the conversion ratio. One electronvolt is equal to 4.4505E-23 watt-hours, so use this simple formula to convert:

The energy in watt-hours is equal to the electronvolts multiplied by 4.4505E-23.

**For example,**here's how to convert 5.0E+22 electronvolts to watt-hours using the formula above.

Electronvolts and watt-hours are both units used to measure energy. Keep reading to learn more about each unit of measure.

## Electronvolts

The electronvolt is a unit of energy used in physics, most commonly in electrostatic particle accelerator sciences.

Electronvolts can be abbreviated as *eV*, for example 1 electronvolt can be written as 1 eV.

Energy in electronvolts can be expressed using the following formula: E = qV

The energy E in electronvolts is equal to the electric charge q in elementary charge times the potential difference V in volts.

## Watt-hours

The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours are usually abbreviated as *Wh*, although the formally adopted expression is *W·h*. The abbreviation *W h* is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.^{[1]}

## Electronvolt to Watt-hour Conversion Table

Electronvolts | Watt-hours |
---|---|

1 eV | 0.000000000000000000000044505 Wh |

2 eV | 0.00000000000000000000008901 Wh |

3 eV | 0.00000000000000000000013351 Wh |

4 eV | 0.00000000000000000000017802 Wh |

5 eV | 0.00000000000000000000022252 Wh |

6 eV | 0.00000000000000000000026703 Wh |

7 eV | 0.00000000000000000000031153 Wh |

8 eV | 0.00000000000000000000035604 Wh |

9 eV | 0.00000000000000000000040054 Wh |

10 eV | 0.00000000000000000000044505 Wh |

100 eV | 0.0000000000000000000044505 Wh |

1,000 eV | 0.000000000000000000044505 Wh |

10,000 eV | 0.00000000000000000044505 Wh |

100,000 eV | 0.0000000000000000044505 Wh |

1,000,000 eV | 0.000000000000000044505 Wh |

10,000,000 eV | 0.00000000000000044505 Wh |

100,000,000 eV | 0.0000000000000044505 Wh |

1,000,000,000 eV | 0.000000000000044505 Wh |

10,000,000,000 eV | 0.00000000000044505 Wh |

100,000,000,000 eV | 0.0000000000044505 Wh |

1,000,000,000,000 eV | 0.000000000044505 Wh |

10,000,000,000,000 eV | 0.00000000044505 Wh |

100,000,000,000,000 eV | 0.0000000044505 Wh |

1,000,000,000,000,000 eV | 0.000000044505 Wh |

10,000,000,000,000,000 eV | 0.00000044505 Wh |

100,000,000,000,000,000 eV | 0.0000044505 Wh |

1,000,000,000,000,000,000 eV | 0.000044505 Wh |

10,000,000,000,000,000,000 eV | 0.000445 Wh |

100,000,000,000,000,000,000 eV | 0.00445 Wh |

1,000,000,000,000,000,000,000 eV | 0.044505 Wh |

10,000,000,000,000,000,000,000 eV | 0.445049 Wh |

99,999,999,999,999,991,611,392 eV | 4.4505 Wh |

## References

- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf