How to convert Ah to mAh

Ah to mAh calculation formula

Q_(mAh) = Q_(Ah) × 1000

The electric charge Q in milliamp-hours (mAh) is equal to the electric charge Q in amp-hours (Ah), multiplied by 1000.

So,

mAh = Ah x 1000
milliamp-hour = amp-hour x 1000

For example:

Electric charge (Q_(Ah)) = 7Ah

Electric charge (Q_(mAh)) = 7Ah x 1000 = 7000mAh