Power Spectrum Calculator
Calculate power spectral density to analyze frequency content of signals.
Signal Parameters
Power Spectrum Formula
P(k) = |X(k)|²/N
where X(k) is the DFT of x[n]
Quick Examples
Dominant Frequency
250.00 Hz
Power: 2.000000
Total Power
2.0000
Signal Variance
0.5000
Freq Resolution
125.00 Hz
Nyquist Freq
500 Hz
Power Spectrum
0.0 Hz-100.00 dB
125.0 Hz-100.00 dB
250.0 Hz3.01 dB
375.0 Hz-100.00 dB
500.0 Hz-100.00 dB
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Handbook of Mathematical Functions
by Abramowitz & Stegun
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.