mAh to Wh calculator

Enter the electric charge in milliamp-hours (mAh), voltage in volts (V), then press the Calculate button to get the result in watt-hours (Wh).

mAh to Wh calculation

Wh: 0

E(Wh) = Q(mAh) × V(V) / 1000

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