F# is a major, spelled F#, A# and C#. In Standard tuning (E2 A2 D3 G3 B3 E4) the easiest shape is 244322, which sits at fret 2 and needs a barre across 6 strings at fret 2. 12 positions for it are shown below, from the nut up to fret 14.
Notes and intervals
Note
F#
A#
C#
Interval
1P
3M
5P
12 ways to play it
Ordered by how hard they are to fret, easiest first, one per position on the neck. Fret numbers are relative to the position marked beside each grid.
244322sits at fret 2 and needs a barre across 6 strings at fret 2x443xxsits at fret 3, spans 1 fret and mutes 3 stringsxx4676sits at fret 4, spans 3 frets and mutes 2 strings2143xxsits at fret 1, spans 3 frets and mutes 2 stringsx91111119sits at fret 9, needs a barre across 5 strings at fret 9 and mutes 1 stringx98676sits at fret 6, needs a barre across 3 strings at fret 6 and mutes 1 string998xxxsits at fret 8, spans 1 fret and mutes 3 strings141311111114sits at fret 11 and needs a barre across 3 strings at fret 11xxx151414sits at fret 14, needs a barre across 2 strings at fret 14 and mutes 3 stringsx98117xsits at fret 7, spans 4 frets and mutes 2 strings24432xsits at fret 2, needs a barre across 5 strings at fret 2 and mutes 1 string2443xxsits at fret 2, spans 2 frets and mutes 2 strings
Keys F# belongs to
F# is diatonic to 24 of the 96 keys this app knows, playing a different role in each.