C diminished Chord (Cdim) & C diminished 7th (Cdim7) on Piano & Guitar

A piano keyboard reference for the C diminished chord, abbreviated as Cdim or C°.

The C diminished triad consists of the notes C, E_♭ and G_♭. The 2 inversions to the C diminished triad are E_♭ G_♭ C and G_♭ C E_♭.

The C diminished 7th chord, abbreviated as Cdim7 or C°7, has the notes C, E_♭, G_♭ and B_♭♭. The 3 inversions to the C diminished 7th chord are E_♭ G_♭ B_♭♭ C, G_♭ B_♭♭ C E_♭ and B_♭♭ C E_♭ G_♭.

The intervals of the C diminished chord are the root (C) , minor third (E_♭) and diminished fifth (G_♭). With the C diminished 7th chord, there's an additional diminished seventh (B_♭♭).

🎸 You can also jump to guitar chord diagrams for the C diminished and C diminished7th chords in common positions on the guitar fretboard. You'll find both open chords and/or barre chords.

C diminished Chord on Piano

⌨️ hint: use numbers 1 to 7 on a computer keyboard to trigger the chords and their inversions.

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🎸 C diminished Chord Guitar Diagrams

Below you'll find guitar chord diagrams for common chord positions of the C diminished chord and the C diminished 7th chord, along with finger positions or note names.

show: Finger positions Note names

orientation: Vertical Horizontal

C diminished 7th Guitar Chords

1 Index finger

2 Middle finger

3 Ring finger

4 Pinky

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