Music Analysis Tools

Note-to-frequency converter

Convert notes into exact frequencies so synth tuning, oscillator setup, and harmonic math stay precise.

Tool

Run the tool

Add your inputs below and Ubetoo will return the result, output, or generated file in the result panel.

Use scientific pitch notation like C4, F#3, or Bb2.

Change this only if you are working away from standard concert pitch.

Reset

Result

440 Hz

A4 maps to 440 Hz when A4 is set to 440 Hz.

Note A4
Frequency 440 Hz
MIDI note 69
Reference A4 440 Hz

How to use this tool well

  • Keep the A4 reference at 440 Hz unless you are matching a different tuning standard.
  • Scientific pitch notation is the safest way to avoid octave mistakes.