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F7

Reviewed for accuracy · Maintained by Justin Evans

C1C2C3C4C5C6C7FC8

F7 highlighted — use the view toggle to see all 88 keys.

Piano key
81 of 88
Octave
7
Frequency
2793.83 Hz
MIDI number
101
Key color
White key
Pitch class
F · E# · Gbb

What is F7?

F7 is the F in octave 7 — the 81st key of the 88 on a full-size piano, counted from the bottom. In standard tuning it sounds at 2793.83 Hz. It sits 41 half-steps above middle C (C4).

To find it, locate any group of two black keys: the white key just to their left is a C. Count up from middle C (C4) 3 octaves to reach octave 7, then step to F.

Every octave doubles the frequency: the F one octave up sounds at 5587.66 Hz and the one below at 1396.92 Hz. The same piano key can be written as F, E#, Gbb depending on the musical context — same sound, different spelling.

Nearby notes

E7F7F♯7

Every F on the keyboard:

F1F2F3F4F5F6

Build on F

F

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