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Fourier Series Fundamental Frequency and Period Calculator

f₀ = 1/T; harmonic frequencies nf₀.

Calculates fundamental frequency f₀ = 1/T, angular frequency ω₀ = 2πf₀, and the first 5 harmonics for a periodic signal. Shows the Fourier series expansion template.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

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Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

f₀ = 1/T; ωₙ = n·2π/T; fₙ = n·f₀

In depth

Calculates fundamental frequency f₀ = 1/T, angular frequency ω₀ = 2πf₀, and the first 5 harmonics for a periodic signal. Shows the Fourier series expansion template.