# Convert Coulombs to Ampere-hours

Enter the electric charge in coulombs below to get the value converted to ampere-hours.

**Results in Ampere-hours:**

## How to Convert Coulombs to Ampere-hours

To convert a coulomb measurement to a ampere-hour measurement, multiply the electric charge by the conversion ratio. One coulomb is equal to 0.000278 ampere-hours, so use this simple formula to convert:

The electric charge in ampere-hours is equal to the coulombs multiplied by 0.000278.

**For example,**here's how to convert 5 coulombs to ampere-hours using the formula above.

Coulombs and ampere-hours are both units used to measure electric charge. Keep reading to learn more about each unit of measure.

## Coulombs

One coulomb is the electric charge equal to one ampere of current over one second.

The coulomb can be expressed as Q_{C} = I_{A} × t_{s}

The charge in coulombs is equal to the current in amperes times the time in seconds.

The coulomb is the SI derived unit for electric charge in the metric system. Coulombs can be abbreviated as *C*, for example 1 coulomb can be written as 1 C.

## Ampere-hours

One ampere-hour is the electric charge equal to the charge conveyed by a current of one ampere for one hour. One ampere-hour is equal to 3,600 coulombs.

The ampere-hour is a non-SI metric unit for electric charge. A ampere-hour is sometimes also referred to as an amp-hour. Ampere-hours can be abbreviated as *Ah*, for example 1 ampere-hour can be written as 1 Ah.

## Coulomb Measurements and Equivalent Ampere-hour Conversions

Coulombs | Ampere-hours |
---|---|

1 C | 0.000278 Ah |

2 C | 0.000556 Ah |

3 C | 0.000833 Ah |

4 C | 0.001111 Ah |

5 C | 0.001389 Ah |

6 C | 0.001667 Ah |

7 C | 0.001944 Ah |

8 C | 0.002222 Ah |

9 C | 0.0025 Ah |

10 C | 0.002778 Ah |

11 C | 0.003056 Ah |

12 C | 0.003333 Ah |

13 C | 0.003611 Ah |

14 C | 0.003889 Ah |

15 C | 0.004167 Ah |

16 C | 0.004444 Ah |

17 C | 0.004722 Ah |

18 C | 0.005 Ah |

19 C | 0.005278 Ah |

20 C | 0.005556 Ah |

21 C | 0.005833 Ah |

22 C | 0.006111 Ah |

23 C | 0.006389 Ah |

24 C | 0.006667 Ah |

25 C | 0.006944 Ah |

26 C | 0.007222 Ah |

27 C | 0.0075 Ah |

28 C | 0.007778 Ah |

29 C | 0.008056 Ah |

30 C | 0.008333 Ah |

31 C | 0.008611 Ah |

32 C | 0.008889 Ah |

33 C | 0.009167 Ah |

34 C | 0.009444 Ah |

35 C | 0.009722 Ah |

36 C | 0.01 Ah |

37 C | 0.010278 Ah |

38 C | 0.010556 Ah |

39 C | 0.010833 Ah |

40 C | 0.011111 Ah |

## More Coulomb Electric Charge Conversions

**SI Units**

- Convert to Millicoulombs
- 1 C is equal to 1,000 millicoulombs
- Convert to Microcoulombs
- 1 C is equal to 1,000,000 microcoulombs
- Convert to Nanocoulombs
- 1 C is equal to 1,000,000,000 nanocoulombs
- Convert to Picocoulombs
- 1 C is equal to 1,000,000,000,000 picocoulombs

**Centimetreâ€“Gramâ€“Second Units**

- Convert to Statcoulombs
- 1 C is equal to 2,997,919,999.9 statcoulombs
- Convert to Abcoulombs
- 1 C is equal to 0.1 abcoulombs

**Other Units**

- Convert to Electron Charge
- 1 C is equal to 6,241,500,000,000,000,000 electron charge
- Convert to Milliampere-hours
- 1 C is equal to 0.277778 milliampere-hours