How to convert Wh to mAh

Wh to mAh calculation formula

Q_(mAh) = 1000 × E_(Wh) / V_(V)

The electric charge Q in milliamp-hours (mAh) is equal to 1000, multiplied by the energy E in watt-hours (Wh), divided by the voltage V in volts (V).

So,

mAh = 1000 × Wh / V
milliamp-hour = 1000 × watt-hour / volt

For example:

Energy (E) = 5Wh
Voltage (V) = 8V

Electric charge (Q) = 1000 x 5Wh / 8V = 625mAh