Enter the resistance values into the calculator to determine the total resistance in series or parallel configurations.

Resistance Calculation Formula

The following formulas are used to calculate the total resistance in series and parallel configurations.

Total Resistance (Series) = R1 + R2 + R3
Total Resistance (Parallel) = 1 / (1/Ra + 1/Rb + 1/Rc)

Variables:

  • Total Resistance is the combined resistance of all resistors in the circuit (Ω)
  • R1, R2, R3 are the individual resistances in series (Ω)
  • Ra, Rb, Rc are the individual resistances in parallel (Ω)

To calculate the total resistance, use the appropriate formula based on the configuration of the resistors.

What is Resistance Calculation?

Resistance calculation refers to the process of determining the total resistance in a circuit based on the individual resistances of the components. This involves understanding whether the resistors are connected in series or parallel and applying the correct formula to find the total resistance. Proper resistance calculation is essential for designing and analyzing electrical circuits.

How to Calculate Total Resistance?

The following steps outline how to calculate the total resistance using the given formulas.


  1. First, determine the configuration of the resistors (series or