The F-sharp diminished chord (abbreviated "F#dim chord") is a triad consisting of the notes F, A, and C. The chord is formed by lowering the fifth of a F-sharp minor chord a half step.

Name
F-sharp diminished chord
Synonym
F-sharp diminished triad
Notes
F A C
Intervals
1 3 5
Chord symbol
Fo
Alternative symbols
Fdim Fm(b5) Fmb5
Type
triad (three-note chord)

F#dim chord on piano

F#dim chord on guitar

F#dim chord on ukulele

F#dim chord on the staff