Watt is the SI unit of power, equivalent to one joule per second.

Here, we are going to learn how to convert electric power in watts ( W ) to energy in watt-hour (Wh).

**Formula to calculate watt hours.**

**Example:**

Calculate energy consumption in watt-hour if the power consumption is 6 watts for time duration of 4 hours?

Therefore, the energy consumption is 24 Wh.