Parallel Resistor Calculator

Enter resistor values to calculate the parallel equivalent and optional branch/current information.

Resistors (Ω)

Optional test voltage (V)

All listed resistors are treated as ideal parallel branches.

—Equivalent resistance

—Branches

—Total current

—Total power

—Total conductance

Educational / low-voltage electronics calculator. Real components have tolerances and non-ideal behavior. Do not use this page as a substitute for qualified design or safety guidance for mains/high-energy electrical systems.

How to use this Parallel Resistor Calculator

Calculate the equivalent resistance of two or more resistors connected in parallel. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.