Watt Calculator

Free watt calculator - step-by-step solutions to help find electrical power.

See an example

How to use this calculator

Step 1:

Enter the values of voltage and current below which you want to find the electrical power.

The Watt calculator finds the electrical power of a circuit using the given values.

Electrical power is given by

$P = V \cdot I$
$P = Electrical power$
$V = Voltage$
$I = Current$

Step 2:

Click the arrow to submit. Choose "Find the Power" from the topic selector and click to see the result in our Physics Calculator!

What can you do with this calculator?

Pick a topic to see a worked, step-by-step example.

Find the Power

How It Works

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Type it into the calculator above, or use the on-screen math keyboard for fractions, exponents, radicals, and more.

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