How do I simulate an RLC circuit?

Open this page and use the live DFT Spectrum Analysis tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an RLC circuit from your own measurements.

Use case · powered by DFT Spectrum Analysis

DFT Spectrum Analysis for an RLC circuit

Simulate an RLC circuit live in your browser. This runs the real DFT Spectrum Analysis solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

DFT Spectrum AnalysisLive

finding hidden frequencies

Controls

Presets

Frequency 1 (cycles)

Frequency 2 (cycles)

Amplitude 2

Noise

The Discrete Fourier Transform decomposes a signal into its constituent frequencies. A messy time-domain wave becomes clean peaks in the spectrum — the mathematics behind audio equalizers, MRI, and Wi-Fi. Educational tool.

▶ Run in Python

Data Inspector

Peak 15 cycles

Peak 212 cycles

Resolution0.008 cyc/sample

Governing equation

X_{k} = n = 0 \sum N - 1 x_{n} e^{- 2 π ik n / N} (N = 128)

Reading this result: Two clean sinusoids produce two crisp peaks at their frequencies; peak height tracks amplitude, which is exactly how an equalizer reads a signal.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full DFT Spectrum Analysis tool models an RLC circuit with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

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Other ways to simulate an RLC circuit

Fourier Transform for an RLC circuit Bode Plot for an RLC circuit Filter Designer for an RLC circuit PID Controller for an RLC circuit Transmission Line for an RLC circuit Op-Amp Circuits for an RLC circuit

Frequently asked questions

How do I simulate an RLC circuit?: Open this page and use the live DFT Spectrum Analysis tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an RLC circuit from your own measurements.