Watts to Joules conversion

How to convert Watts to Joules:

The energy E in joules (J) is equal to the power P in watts (W) times the time period t in seconds (s):

P_(W) * t_(s)

NOTE:

It is possible to calculate joules from seconds and watts, but you cannot convert watts to joules since watt and joule units represent different quantities.

Watts to Joules calculation formula

The energy E in joules (J) is equal to the power P in watts (W) times the time period t in seconds (s):

E_(J) = P_(W) * t_(s)

So

Joules = Watts * Seconds

or

J = W * s

Example

Find the energy consumption of an electrical circuit that has a power consumption of 30 watts given a time duration of 3 seconds?

E_(J) = 30W * 3s = 90J