Enter the power in watts (W), time period in seconds (s), then press the **Calculate** button to get the result in kilojoules (kJ).

## Watts to kJ calculation

E_{(kJ)} = P_{(W)} × t_{(s)} / 1000

The energy **E** in kilojoules (kJ) is equal to the power **P** in watts (W), multiplied by the time period **t** in seconds (s), divided by 1000.

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