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Resistors in Series Calculator

Physics
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Calculates the total equivalent resistance of resistors connected end-to-end.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Resistor 1 Value, Resistor 2 Value, Resistor 3 Value, Resistor 4 Value, and Resistor 5 Value in the units shown.

Step 2

Read Total Equivalent Resistance in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Two Resistors

Resistor 1 Value: 100 Ohms; Resistor 2 Value: 200 Ohms; Resistor 3 Value: 0 Ohms; Resistor 4 Value: 0 Ohms; Resistor 5 Value: 0 Ohms

Total Equivalent Resistance: 300 Ohms

Three Resistors

Resistor 1 Value: 100 Ohms; Resistor 2 Value: 200 Ohms; Resistor 3 Value: 300 Ohms; Resistor 4 Value: 0 Ohms; Resistor 5 Value: 0 Ohms

Total Equivalent Resistance: 600 Ohms

Equal Resistors

Resistor 1 Value: 100 Ohms; Resistor 2 Value: 100 Ohms; Resistor 3 Value: 100 Ohms; Resistor 4 Value: 100 Ohms; Resistor 5 Value: 100 Ohms

Total Equivalent Resistance: 500 Ohms

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