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F half-diminished chord

The Fm7♭5 chord (half-diminished) is made of the notes F, A♭, C♭, E♭. Its formula compared with the major scale is 1 ♭3 ♭5 ♭7.

Fm7♭5

Sevenths · 4 notes

Note names

Open in the chord tool

How it is built

DegreeNoteInterval from the root
1FUnison
♭3A♭Minor third
♭5C♭Diminished fifth
♭7E♭Minor seventh

Inversions

  • Fm7♭5F A♭ C♭ E♭Root position
  • Fm7♭5/A♭A♭ C♭ E♭ FFirst inversion
  • Fm7♭5/C♭C♭ E♭ F A♭Second inversion
  • Fm7♭5/E♭E♭ F A♭ C♭Third inversion

Which keys it belongs to

Fm7♭5 is a diatonic chord, that is, it comes from a degree of the scale, in these keys:

Frequently asked questions

Which notes make up the Fm7♭5 chord?
The notes are F, A♭, C♭, E♭.
What is the formula of the Fm7♭5 chord?
The formula is 1 ♭3 ♭5 ♭7: minor third, diminished fifth, minor seventh.

Texts and tools by , professional musician and developer. Last updated: October 8, 2026.

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