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Series Resistors Calculator

Two Resistors in Series

Three Resistors in Series

Formula

R_total = R₁ + R₂ + R₃ + ..., where each R is the resistance of an individual resistor in ohms.

Frequently Asked Questions

How do resistors add in series?
Resistors in series simply add up: R_total = R₁ + R₂ + R₃ + ... The total resistance is always greater than the largest individual resistance.
What is the voltage division in series resistors?
In a series circuit, the voltage divides proportionally across each resistor according to its resistance: V_n = V_total × (R_n / R_total). This is the basis of voltage divider circuits.

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