Enter the resistance of up to 5 resistors in parallel into the calculator to determine the equivalent resistance.

- Series Resistance Calculator
- Resistor Divider Calculator
- Potential Difference Calculator
- Voltage Divider Calculator

## Parallel Resistance Formula

The following formula is used to calculate the equivalent resistance of resistors in parallel.

1/R = 1/R_{1} + 1/R_{2} + 1/R_{3} + 1/R_{4} + 1/R_{5}

- Where R is the equivalent resistance
- R1 – R5 are the resistances of each individual resistor

## Parallel Resistance Definition

A parallel resistance is defined as the equivalent resistance of a set of resistors in parallel.

## Parallel Resistance Example

How to calculate parallel resistance?

**First, determine the individual resistances.**Measure the individual resistances of each resistor.

**Next, rearrange the equation above.**Rearrange the equation above to solve for R. This would be R = 1/ (1/R1 + (1/R2) + …)

**Finally, calculate the resistance.**Using the formula or calculator above, determine the equivalent resistance.

## FAQ

**What is a parallel resistance?**

A parallel resistance is the equivalent resistance of a circuit with multiple resistors in which the current has the opportunity to flow through each resistor at the same time. This is in contrast to a series resistor where the current must flow through each resistor 1 at a time.

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