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Resistor Combination Calculator
Find the total resistance of two resistors wired in series or in parallel, and compare the two different arrangements side by side.
R_series = R₁ + R₂
Resistors in series simply add up, while resistors in parallel give a total smaller than the smallest single resistor.
Series resistance
— Ω
The calculation runs entirely in your browser — no data leaves your device. Change any number and the answer updates instantly.