Parallel Resistor Calculator

Example: 10, 20, 30 — list every resistor connected in parallel.
Worked example result
Equivalent parallel resistance5.0000 Ω
Equivalent series resistance20.0000 Ω
Total conductance0.200000 S
Number of resistors2

Two equal 10 Ω resistors in parallel give exactly half: 5 Ω, while in series they would give 20 Ω.

1/Rp = 1/R₁ + 1/R₂ + … ; Rs = R₁ + R₂ + … ; G = 1/Rp · Powered by CalcHub — Parallel Resistor Calculator