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Watts to joules calculator FullScreen

Convert power in watts (W) to energy in joules (J). Ideal for understanding the amount of energy generated or consumed per unit of time. Obtain an estimation of joules from watts using this convenient online tool.

Enter power in watts: W
Enter time in seconds: s
Energy result in joules: J


What is Watts to joules calculator

To convert watts (W) to joules (J), you need to know the time (t) in seconds (s) for which the power is consumed. The formula for converting watts to joules is:

Joules (J) = Watts (W) × Time (t)

Simply multiply the power in watts by the time in seconds to obtain the energy in joules.

For example, if you have a device with a power consumption of 100 watts (W) and it operates for 2 seconds (s), you can calculate the energy consumed in joules as follows:

Joules (J) = 100 W × 2 s Joules (J) = 200 J

In this example, the energy consumed by the device would be 200 joules.

It's important to note that this calculation assumes a constant power consumption over time. If the power consumption varies or if you are considering a situation where power changes over time, you may need to integrate or sum the power values at different time intervals to accurately determine the total energy in joules.

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)

Watts to joules calculator Example

Energy (J) = Power (W) × Time (s)

Here's an example table that demonstrates how to calculate energy in joules from different wattage values:

Watts (W) Time (s) Energy (J)
100W 5s 500J
200W 10s 2000J
150W 8s 1200J
75W 3s 225J

To calculate the energy in joules, multiply the power in watts by the time in seconds. For example, if you have 100W of power and a time interval of 5 seconds:

Energy (J) = 100W * 5s Energy (J) = 500J

Therefore, for 100W of power and 5 seconds of time, the energy is 500 joules.

Perform the same calculation for the other examples in the table using the given wattage and time values to obtain the energy in joules.

Remember to ensure that the time unit is consistent with seconds when performing the calculation.