Series & Parallel Resistor Calculator
Total resistance of resistors in series and in parallel (also works for inductors).
How to use the Series & Parallel Resistor Calculator
- Enter or select: Resistor values (Ξ©).
- The results (Series total, Parallel total, Count) are calculated instantly as you type.
- Use βCopy linkβ to share the calculation with the same input values.
Formula
- Series: R = Rβ + Rβ + β¦
- Parallel: 1/R = 1/Rβ + 1/Rβ + β¦
About this tool
Values accept SI expressions like 4.7e3.