Series and Parallel Resistor Calculator

Easily calculate the resistor equivalent for both series and parallel circuits with our intuitive resistor equivalent calculator . Simply enter your resistor values, and instantly find the resistor equivalent circuit whether you're working on series or resistor equivalent in parallel configurations. This tool helps engineers, technicians, and students quickly determine the total resistance with precision; perfect for circuit design, troubleshooting, and educational use.

Series Resistors

When resistors are connected in series , their total resistance equals the sum of all resistor values:R_total = R₁ + R₂ + R₃ + … + RₙA resistor series circuit increases total resistance and reduces current flow. This configuration is commonly used voltage dividers in and current-limiting applications.

Parallel Resistors

In a resistor parallel circuit, the total or resistor equivalent in parallel is always less than the smallest resistor. It's calculated using the reciprocal formula: 1 / R_total = 1 / R₁ + 1 / R₂ + 1 / R₃ + … + 1 / Rₙ A resistor equivalent circuit in parallel allows more current to flow, making it ideal for load sharing and power distribution designs.

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