# How to convert mAh to Ah

How to convert electric charge of milliamp-hour (mAh) to amp-hour (Ah).

### milliamper-hour to ampere-hour conversion

The electric charge *Q*_{(Ah)} in ampere-hours is equal to the electric charge *Q*_{(mAh) }in milliamp-hour divided by 1000:

*Q*_{(Ah)} = *Q*_{(mAh)} / 1000

So amp-hour is equal to milliamp-hour divided by 1000:

ampere-hours = milliampere-hours / 1000

or

Ah = mAh / 1000

#### Example

Convert current of 300 milliampere-hour to ampere-hour?

The electric charge Q is equal to 300 milliamp-hour divided by 1000:

*Q* = 300mAh / 1000 = 0.3Ah