# How to convert Wh to mAh

How to convert watt-hours (Wh) to milliamp-hours (mAh).

### Watt-hours to milliamp-hours calculation formula

The electric charge *Q*_{(mAh)} in milliamp-hours (mAh) is equal to
1000 times the energy *E*_{(Wh)} in watt-hours (Wh) divided by the voltage *V*_{(V)} in volts (V):

*Q*_{(mAh)} = 1000 × *E*_{(Wh)} / *V*_{(V)}

So milliamp-hours is equal to 1000 times watt-hours divided by volts:

milliamp-hours = 1000 × watt-hours / volts

or

mAh = 1000 × Wh / V

#### Example

Find the electric charge in milliamp-hours when the energy consumption is 3 watt-hours and the voltage is 5 volts.

The electric charge Q is equal to 1000 times 3 watt-hours, divided by 5 volts:

*Q* = 1000 × 3Wh / 5V = 600mAh