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Ampere-hours (Ah) and milliampere-hours (mAh) are units used to measure the capacity of a battery or the amount of electric charge it can store and deliver. Ampere-hours are a larger unit, while milliampere-hours are a smaller unit commonly used for practical purposes.

## Ampere-hour (Ah)

It represents the amount of charge a battery can deliver or store when a current of one ampere flows for one hour. It’s a unit of electric charge capacity.

## Milliampere-hour (mAh)

This is a subunit of the ampere-hour, where “milli” denotes one-thousandth. It’s often used because batteries typically deliver currents much smaller than an ampere. 1 Ah is equal to 1000 mAh. It’s a common unit for specifying the capacity of smaller batteries, like those in smartphones or portable devices.

### How to convert ampere-hours to milliampere-hours

1mAh = 0.001Ah

or

1Ah = 1000mAh

#### Ampere-hours to milliampere-hours formula

Q_{(mAh)} = Q_{(Ah)} × 1000

Example – Convert 3 ampere-hours to milliampere-hours:

Ans. Q_{(mAh)} = 3Ah × 1000 = 3000mAh

**Also Read: Ah to coulombs conversion**

### Ah to mAh conversion table

Ampere-hours (Ah) |
Milliampere-hours (mAh) |

0 Ah | 0 mAh |

0.001 Ah | 1 mAh |

0.01 Ah | 10 mAh |

0.1 Ah | 100 mAh |

1 Ah | 1000 mAh |

10 Ah | 10000 mAh |

100 Ah | 100000 mAh |

1000 Ah | 1000000 mAh |

## FAQs on Ah to mAh conversion

### Is 1000mAh equal to 1Ah?

No, 1000mAh (milliampere-hours) is equal to 1Ah (ampere-hour). The 'm' in mAh stands for milli, which is one-thousandth of a unit. Therefore, 1000mAh is equivalent to 1Ah.

### What is 1mAh equal to?

1mAh (milliampere-hour) is equal to 0.001Ah (ampere-hour), as milli is a thousandth of a unit.

### How many amps is 10000mAh?

10000mAh is equal to 10A (amperes), as 1Ah is equivalent to 1A.

### What is 1 amp-hour?

1 amp-hour (1Ah) is a unit of electrical charge. It represents the amount of current (in amperes) that flows through a circuit for one hour.

### What is a 1Ah battery?

A 1Ah battery refers to a battery's capacity to deliver a current of 1 ampere for 1 hour. It's a common unit for measuring the energy storage capacity of batteries.

### Is 100mA equal to 1 amp?

No, 100mA (milliamperes) is equal to 0.1A (amperes), or 1/10th of an ampere.

### How many kilowatts (kW) is a 200Ah battery?

To convert amp-hours (Ah) to kilowatts (kW), you would need the voltage of the battery. The formula is kW = Ah * V / 1000, where V is the voltage in volts. Without the voltage, the conversion cannot be determined.