The F Note
F is a white key on the piano. It sounds at 349.23 Hz in octave 4.
F on the piano
Key facts
- On the keyboard
- a white key on the piano.
- Frequency (octave 4)
- 349.23 Hz
- MIDI number (octave 4)
- 65
- Also written as
- E♯
- In key signatures
- Never appears as an accidental in a key signature.
F and its enharmonic spellings
F can also be written as E♯. These are enharmonic equivalents: the same pitch, the same key on the piano, a different name on the page. Which spelling is correct depends on the key and on how the note functions, not on the sound.
F frequency in every octave
Frequencies for F in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| F1 | 29 | 43.65 Hz |
| F2 | 41 | 87.31 Hz |
| F3 | 53 | 174.61 Hz |
| F4 | 65 | 349.23 Hz |
| F5 | 77 | 698.46 Hz |
| F6 | 89 | 1396.91 Hz |
| F7 | 101 | 2793.83 Hz |
Chords on F
The most common chords built with F as the root.
Scales starting on F
Keys and scales that use F as their tonic.
All notes
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Where is F on the piano?
F is a white key on the piano.
What frequency is F4?
F4 sounds at 349.23 Hz with A4 tuned to 440 Hz.
What is another name for F?
F can also be written as E♯. They are the same pitch spelled differently.
