Note-to-frequency converter

Tool

Run the tool

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

A4 standard pitch C4 concert pitch

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.

Quick examples

A4 -> 440 Hz
C4 -> 261.6256 Hz

Related tools

Frequently asked questions

What is the note-to-frequency converter built for?

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

Should I upload files or use manual entry in the note-to-frequency converter?

The note-to-frequency converter is designed around a direct form workflow, so the fastest path is to fill in the required inputs and run it.

Which inputs matter most on the note-to-frequency converter page?

On this page, the key inputs are note and a4 reference (hz). Use scientific pitch notation like C4, F#3, or Bb2.

What file types or import layouts does the note-to-frequency converter accept?

This tool does not depend on uploads or import files. Enter the values directly in the form fields shown on the page.

What will the note-to-frequency converter return after I run it?

The result panel leads with the main answer, then adds supporting metrics, notes, or formatted output blocks so you can use the result immediately. It validates the inputs and builds a structured result in the page, which is helpful when the workflow needs richer formatting or multiple outputs.

How do I get the best result from the note-to-frequency converter?

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. Typical use cases include A4 -> 440 Hz; C4 -> 261.6256 Hz.