ONE FORMULA, ONE ANSWER
Series RLC Impedance Calculator
Calculate sinusoidal impedance magnitude of an ideal series RLC circuit. Choose input units and calculate one value within the stated conditions.
Inputs
Calculations run in this browser. Scientific notation such as 1.2e-3 is supported. Do not group thousands.
Result
Impedance magnitude |Z|
Enter values and select Calculate.
|Z| = √(R²+(2πfL−1/(2πfC))²)
Assumptions
Required: R≥0, L,C,f>0 and ideal series elements in sinusoidal steady state. Only impedance magnitude is returned. Parasitics, saturation and nonlinearity are excluded.
Displayed values are floating-point approximations. Design safety factors and unprovided error contributions are not calculated.
Formula references and credits
NaNa Lab created the code, descriptions, icons and preview images. Text, figures and code from the linked references have not been reproduced.
Physical constants: NIST / CODATA 2022. The values of μ₀ and ε₀ are measured recommendations, not exact defining constants. Values and precision notes are in the source record.
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