C#dim Piano Chord

The C sharp diminished chord (C♯dim) is made of the notes C♯, E and G. Its formula is 1 – ♭3 – ♭5.

Tap the keyboard to hear C♯dim.

Notes in C♯dim

Note	Formula	Interval from root
C♯	1	root
E	♭3	minor 3rd
G	♭5	diminished 5th

How to play C♯dim on piano

Right hand: fingers 1-3-5
Left hand: fingers 5-3-1

Fingers are numbered from the thumb (1) to the little finger (5).

C♯dim inversions

root position: C#dim

C♯ – E – G · RH 1-3-5, LH 5-3-1

1st inversion: C#dim/E

E – G – C♯ · RH 1-2-5, LH 5-3-1

2nd inversion: C#dim/G

G – C♯ – E · RH 1-3-5, LH 5-2-1

Other names for C#dim

C♯dim is also written as C♯dim, C#°, C♯°, C#mb5, C♯m♭5, Dbdim, D♭dim, Db°, D♭°, Dbmb5, D♭m♭5.

Keys that contain C♯dim

D major (C♯dim is the vii° chord)
B minor (C♯dim is the ii° chord)

More C sharp chords

Diminished chords in every key