About this tool: Series and Parallel Resistance
Calculate equivalent resistance for series and parallel connections from a resistor list.
The series result adds all resistances; the parallel result adds conductances and takes the reciprocal. The same input list is used for both ideal connection types. A zero-ohm resistor shorts a parallel network, so its equivalent resistance is zero.
How the calculation works
Worked example
| Resistances, Ω, separated by spaces | 100 200 300 |
Series: 600 Ω; parallel: 54.5454545455 Ω
Questions and answers
What does this tool do?
Calculate equivalent resistance for series and parallel connections from a resistor list. The series result adds all resistances; the parallel result adds conductances and takes the reciprocal. The same input list is used for both ideal connection types. A zero-ohm resistor shorts a parallel network, so its equivalent resistance is zero.
What affects precision and input format?
Floating-point results are rounded for display. Keep the units shown in the input labels; decimal points and decimal commas are accepted.
Where are the calculations performed?
The calculation runs in your browser. You can use the tool without installing software.
Asted Cloud
Comments (0)
Share your thoughts — please be polite and stay on topic.
Log in to comment