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Note ↔ Frequency Converter
Translate any musical note to an exact frequency or determine the nearest note for a given frequency. Perfect for tuning, analysis, and sound design.
What this tool does
Note ↔ Frequency Converter helps you translate any musical note to an exact frequency or determine the nearest note for a given frequency. Perfect for tuning, analysis, and sound design.
What you get
Note ↔ Frequency Converter produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.
Frequency to note
Closest note: A4
Detuning: 0.0 cents
Note to frequency
Frequency: 440.00 Hz
Wavelength (air): 0.780 m
Results assume equal temperament tuning with A4 set to 440 Hz, the modern concert standard. The converter works well for calibration, synth design, sample labelling, and instrument maintenance.
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.