Sound Frequency Converter

Convert between musical notes and frequencies with precision.

About Sound Frequencies

Sound frequency determines the pitch of a musical note. The relationship between notes and frequencies follows a logarithmic scale.

Musical Notes
  • • Standard tuning: A4 = 440 Hz
  • • Each octave doubles the frequency
  • • 12 semitones per octave
  • • Notes: C, C#, D, D#, E, F, F#, G, G#, A, A#, B
Common Frequencies
  • • Middle C (C4): 261.63 Hz
  • • Concert A (A4): 440 Hz
  • • High C (C5): 523.25 Hz
Frequency Units
  • • Hertz (Hz)
  • • Kilohertz (kHz)
  • • Megahertz (MHz)



Disclaimer : The results provided by these calculators are for informational purposes only and should not be considered as financial, medical, or professional advice. The accuracy of the calculations depends on the information entered, and actual results may vary. We recommend consulting a financial advisor or healthcare professional for personalized guidance.