Resistor power dissipation calculator

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Use this online calculator to calculate the power dissipation in a purely resistive load.

TechOverflow calculators:
You can enter values with SI suffixes like 12.2m (equivalent to 0.012) or 14k (14000) or 32u (0.000032) as well as values with units (like 12V).
The results are calculated while you type and shown directly below the calculator, so there is no need to press return or click on a Calculate button. Just make sure that all inputs are green by entering valid values.

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Formula:

P=I^2R