How to convert mAh to Wh

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

milliamp-hours to watt-hours calculation

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

E(Wh) = Q(mAh) × V(V) / 1000

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

watt-hours = milliamp-hours × volts / 1000

or

Wh = mAh × V / 1000

Example

Find the energy in watt-hours when the electric charge is 300 milliamp-hours and the voltage is 5 volts.

The energy E is equal to 300 milliamp-hours times 5 volts divided by 1000:

E = 300mAh × 5V / 1000 = 1.5Wh

 

How to convert Wh to mAh ►

 


See also

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