Insert milliwatt-hours (mWh) and Voltage (V) and click on Calculate to obtain milliamp-hours (mAh).
mWh
V
mAh
The formula is (mWh)/(V) = (mAh).
For example, if you have 1500 mWh and a voltage of 5V, you obtain 1500mWh / 5V = 300mAh.