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Series & Parallel Resistor Calculator

Compute the equivalent resistance for resistors connected in series or parallel. Paste resistor values separated by commas or spaces and see both totals instantly.

What this tool does

Series & Parallel Resistor Calculator helps you compute the equivalent resistance for resistors connected in series or parallel. Paste resistor values separated by commas or spaces and see both totals instantly.

What you get

Series & Parallel Resistor Calculator produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Report a bug

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