Enter the total current moving through the resistor and the total resistance into the calculator to determine the power dissipation.

## Power Dissipation Formula

The following formula is used to calculate the total power dissipated by a resistor.

p = i2 * R
• Where p is the dissipated power (W)
• I is the current moving through the resistor (amps)
• R is the total resistance (ohms)

To calculate power dissipation, square the current, then multiply by the resistance.

## Power Dissipation Definition

Power dissipation is a measure of the total reduction in power that occurs because of a system’s resistance to flow.

## Power Dissipation Example

How to calculate power dissipation?

• 1.First, determine the resistance. Measure the total equivalent resistance of the resistor or circuit.
• 2.Next, determine the current. Measure the current flow through the circuit or resistor.
• 3.Finally, calculated the dissipated power. Using the resistance and current, along with the formula, calculate the total dissipated power.

## FAQ

What is power dissipation?

Power dissipation is the total reduction in power that occurs due to a resistance to the flow of electricity. In most cases, this resistance comes in the form of a resistor. Add question