# Joules to Watts Electrical Conversion Calculator

Convert joules to watts by entering the energy and time in seconds below.

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Do you want to convert watts to joules?

## How to Convert Joules to Watts

A *watt* (W) is a measure of power in an electrical circuit.

A *joule* (J) is the measure energy, specifically it’s the amount of energy dissipated to move a 1 kilogram object 1 meter using 1 newton of force.

If you know the amount of time in seconds the energy has been dissipated over you can use this formula to convert joules to watts:

Power_{(W)} = Energy_{(J)} ÷ Time_{(s)}

Substitute joules and time in seconds in the formula above to determine watts.

Power is equal to the energy in joules divided by the time in seconds.

**For example**, find watts of power for 250 joules of energy over 40 seconds.

watts = joules ÷ seconds

watts = 250 ÷ 40

watts = 6.25

You might also like our watts to amps converter for converting power to current.