Chord

Fdim7 chord

Fdim7 is a diminished seventh chord with the notes F, A♭, C♭, E𝄫. Also written F°7.

A♭♭3

C♭♭5

E𝄫𝄫7

Intervals

Note	Interval	Semitones
F	root	0
A♭	minor 3rd	3
C♭	diminished 5th	6
E𝄫	diminished 7th	9

Inversions

Root position	F – A♭ – C♭ – E𝄫
1st inversion	A♭ – C♭ – E𝄫 – F (Fdim7/A♭)
2nd inversion	C♭ – E𝄫 – F – A♭ (Fdim7/C♭)
3rd inversion	E𝄫 – F – A♭ – C♭ (Fdim7/E𝄫)

Keys that contain Fdim7

Not diatonic to any major or natural minor key.

Related chords

F F7 Fmaj7 F6 Fadd9 Fsus4

How to build a diminished seventh chord

A diminished seventh chord stacks three minor 3rds. It divides the octave into four equal parts, so the same four notes form diminished chords on four different roots; it often replaces a dominant chord.

Look up any other chord with the Scale & Chord Finder.