Series and Parallel Resistor Calculator
Reduce a bounded list of ideal resistances in one simple series or parallel topology.
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How to use Series and Parallel Resistor Calculator
Series adds resistances. Parallel adds conductances then takes the reciprocal; an ideal zero-ohm branch shorts a parallel network.
- Enter resistances (ohms).
- Check the model, units, and supported limits before calculating.
- Run the tool, inspect the result, then copy or download it.
Good to know
- 1–100 nonnegative resistances. No arbitrary circuit graph, AC impedance, component tolerances, or power-rating advice.
- Runs locally. Numeric inputs are bounded; floating-point output is approximate and rounded to 12 significant digits. Unsupported or non-finite calculations produce an error.
Common questions
How does Series and Parallel Resistor Calculator calculate its result?
Series adds resistances. Parallel adds conductances then takes the reciprocal; an ideal zero-ohm branch shorts a parallel network.
What assumptions and boundaries apply?
1–100 nonnegative resistances. No arbitrary circuit graph, AC impedance, component tolerances, or power-rating advice.
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