Enter an energy value and a time to calculate power.
How to Use the Joules to Watts Conversion Calculator
Energy divided by time is the entire calculation — enter both and power comes out directly.
P = J ÷ tPower is just energy divided by the time it took to deliver it — a joule per second is, by definition, a watt. This Joules to Watts Calculator takes an energy value and a time in seconds and returns the power. 3,600 joules over 60 seconds is 60 watts.