Calculatorism

FFT Bin Frequency Calculator

Compute the frequency of FFT bin k: f = k·fs/N.

Input Data

Input Sampling fs.
Hz
Input FFT size N.
Input Bin k.

Results

39.0625Hz
Bin frequency f = k·fs/N.

At a glance:FFT Bin Frequency Calculator: enter parameters to compute results; complements related calculators.

Formula

f_k = k · fs / N.

How to Use

  1. Enter fs, N, k.
  2. It returns bin k's frequency.

Case Studies

fs=1k, N=256, k=10 → 39.06 Hz

Frequency resolution is fs/N.

FAQ

Resolution?

Bin spacing = fs/N; larger N gives finer resolution.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:FFT Bin Frequency Calculator（/signal/fft-bin-frequency）。