MIDI Note Chart
All 128 MIDI note numbers with their note names and frequencies in Hz · A4 = 440 Hz · 12-tone equal temperament
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Selected notes (1)
- C4 · 60 · 261.63 Hz
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Convert audio to MIDI →How MIDI note numbers work
MIDI identifies every pitch with a number from 0 to 127. Each step is one semitone, so adding 12 moves up exactly one octave: C is 0, 12, 24, 36… up to 120.
The number is what actually travels in a MIDI message; the note name and the frequency are just two ways of reading it.
60 = middle C (C4) and 69 = A4, concert pitch at 440 Hz.
MIDI note to frequency
With A4 = 440 Hz and 12-tone equal temperament, the frequency of note n:
f = 440 × 2(n − 69) / 12
The reverse, to find the nearest MIDI note of a frequency:
n = 69 + 12 × log2(f / 440)
If your instrument is tuned to A4 = 432 Hz or 442 Hz, the note numbers stay the same — only the frequencies shift.
Middle C: C3, C4 or C5?
The MIDI standard defines note 60 as middle C but never defines how octaves are numbered, so every manufacturer picked its own.
This chart uses scientific pitch notation (60 = C4, also used by Roland) by default — switch to C3 or C5 above to match your DAW.
Yamaha calls the same note C3, and most DAWs followed Yamaha: Ableton Live, Logic Pro and Cubase all display 60 as C3. FL Studio shows it as C5.
If a note name in your software looks one octave off from this chart, that's why — the number 60 is identical everywhere, only the label changes.
| Convention | Note 60 | Used by |
|---|---|---|
| Yamaha | C3 | Ableton, Cubase, Logic |
| Scientific | C4 | Roland, this chart |
| FL Studio | C5 | FL Studio |
Sharps and flats
MIDI stores only the number, so 61 can be written C#4 or Db4 — same key, same frequency. Which spelling you see in a DAW depends on the software, not on the MIDI data.
The chart lists the sharp name first and the flat name underneath.
Why only 128 notes?
A MIDI note number is a 7-bit value, which gives 27 = 128 possible values, 0 to 127. That range is far wider than any acoustic instrument.
Note 127 sits at 12,543 Hz, close to the limit of adult hearing. Note 0 (C−1, 8.18 Hz) is below the audible range — it exists for completeness, not for playing.
MIDI note chart FAQ
What is the MIDI note number for middle C?
60 — C4 in this chart, C3 in Yamaha-based software.
What MIDI note is A440?
69, A4 at exactly 440 Hz.
What are the lowest and highest MIDI notes?
0 is C−1 at 8.18 Hz; 127 is G9 at 12,543.85 Hz.
How do I convert a MIDI note number to a frequency?
f = 440 × 2(n − 69)/12. Note 72 is 523.25 Hz.
How do I get the MIDI notes of a song?
Upload the audio to the converter: it detects the pitches and gives you a MIDI file with the note numbers from this chart.
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