Convert Amps to Watts

Just insert milliamp hour (mAh) and voltage (V) then click on Calculate to get Watt hours (Wh) value
mAh
V
Wh
Formula is (mAh)*(V)/1000 = (Wh). For example, if you have a 4000mAh battery rated at 5V, the power is 4000mAh * 5V / 1000 = 20Wh

Convert Watts to Amps

Just insert Watts-hour (Wh) and voltage (V) then click on Calculate button to get milliamp-hours (mAh) value
Wh
V
mAh
Formula is (Wh)*1000/(V) =(mAh). For example, if you have a 20Wh battery rated at 5V, the power is 20Wh * 1000 / 5V = 4000mAh.