Watt mAh Calculator

Using the Watt mAh calculation tool, you can calculate the conversion of energy in Watt-hours (Wh) into electrical charge in milliampere-hours (mAh). Enter the energy in Watt-hours (Wh) and the voltage in volts (V) and press the Calculate button.

The result will appear here.

How to convert Watts to mAh?

To calculate watts in mAh, you must know the voltage value. Enter watt-hours (Wh) and voltage (V) and click Calculate to get milliampere-hours (mAh).

Watt mAh calculation formula

(Wh)*1000/(V) =(mAh)

For example, if you have a 1.5Wh battery rated at 5V, the power is 1.5Wh * 1000 / 5V = 300mAh.

You can automatically convert between Watt and mAh from the power units with the tool on the page. The conversion process you make works automatically based on the mah watt calculation formula. To perform the conversion, simply enter the value you want in the box below and press the “Calculate” button. The result will appear immediately below.