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# Watts to joules calculator

Watts (W) to joules (J) calculator.

Enter the power in watts, time in seconds and press the *Calculate* button:

Joules to watts calculator ►

## Watts to joules calculation

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)}

## See also

- How to convert watts to joules
- Joules to watts calculator
- Watt
- Electrical calculation
- Power conversion

## Write how to improve this page

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> Conversion >

Electrical

calculation > Watts to Joules

# How to convert watts to joules

How to convert

electric power in watts (W) to energy in joules (J).

You can calculate joules from watts and seconds, but you can’t

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

What is the energy consumption of an electrical circuit that has

power consumption of 30 watts for time duration of 3 seconds?

*E*_{(J)} = 30W × 3s = 90J

How to convert joules to watts

►

## See also

- Watts to

joules calculator - How to convert joules to watts
- Watt (W)
- Electrical calculation
- Power conversion
- Energy conversion

## Write how to improve this page

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##### RAPID TABLES

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