Parallel Resistance Calculator
Find equivalent ideal parallel resistance as 1 / Σ(1/R).
Open toolSeries Resistance Calculator
Add ideal resistances connected in series. Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Calculate.
Your result
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Result will appear here
How Series Resistance Calculator works
Add ideal resistances connected in series.
Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. All component values must be strictly positive. Ideal components only; inductors have no mutual coupling.
How to use Series Resistance Calculator
Follow the labelled inputs.
Enter component values in ω
Replace the example with component values in ω. The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
This tool uses one input. Check the supported range before running it. Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion.
Tool result
Run, review and save
Select Calculate. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Series Resistance Calculator
Check the supplied example
The starting example produces 60 Ω. Add ideal resistances connected in series.
Use your own inputs
Read the labels for component values in ω. Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion.
Record a reviewed result
Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Add ideal resistances connected in series.
Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. All component values must be strictly positive. Ideal components only; inductors have no mutual coupling.
Supported input and limits
Check the stated scope before you run it.
Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. All component values must be strictly positive. Ideal components only; inductors have no mutual coupling.
The input stays in this browser. Copy result and Download save the same displayed text.
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Open toolSeries Resistance Calculator: common questions
Answers about using Series Resistance Calculator and understanding its results.
What assumptions and input limits apply?
Use 1–1,000 comma- or whitespace-separated numbers, each with magnitude at most 1 billion. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. All component values must be strictly positive. Ideal components only; inductors have no mutual coupling.
How can I save the output?
Use Copy result to copy the displayed text, or Download to save it as a text file. The tool runs in your browser and does not require an account.
Calculate with your input
Check the calculated result, then copy or download it.