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About F5
F5 has a frequency of 698.46 Hz in standard tuning, where A4 is fixed at 440 Hz. It is MIDI note 77 and key number 57 on an 88-key piano.
In equal temperament every semitone multiplies the frequency by the twelfth root of two (≈1.05946), so F5 is 8 semitones above A4: f = 440 × 2^((77 − 69) / 12) = 698.46 Hz. The number in the name is the octave in scientific pitch notation, which starts each octave on C.
F5 frequency in different tunings
| Tuning reference | F5 frequency |
|---|---|
| A4 = 440 Hz (ISO 16 standard) | 698.46 Hz |
| A4 = 442 Hz (many European orchestras) | 701.63 Hz |
| A4 = 443 Hz (Berlin, Vienna) | 703.22 Hz |
| A4 = 435 Hz (French diapason normal, 1859) | 690.52 Hz |
| A4 = 432 Hz (alternative tuning) | 685.76 Hz |
| A4 = 415 Hz (Baroque pitch) | 658.77 Hz |
| C4 = 256 Hz (scientific pitch) | 683.44 Hz |
Where to play F5 on a guitar
Standard tuning (E A D G B E), frets 0–22.
- 3rd string (G), fret 22
- 2nd string (B), fret 18
- 1st string (high E), fret 13
Intervals from F5
| Interval | Note | Frequency | Ratio (just) |
|---|---|---|---|
| Minor second | F♯5 | 739.99 Hz | 16:15 |
| Major second | G5 | 783.99 Hz | 9:8 |
| Minor third | G♯5 | 830.61 Hz | 6:5 |
| Major third | A5 | 880 Hz | 5:4 |
| Perfect fourth | A♯5 | 932.33 Hz | 4:3 |
| Tritone | B5 | 987.77 Hz | 45:32 |
| Perfect fifth | C6 | 1.047 kHz | 3:2 |
| Minor sixth | C♯6 | 1.109 kHz | 8:5 |
| Major sixth | D6 | 1.175 kHz | 5:3 |
| Minor seventh | D♯6 | 1.245 kHz | 9:5 |
| Major seventh | E6 | 1.319 kHz | 15:8 |
| Octave | F6 | 1.397 kHz | 2:1 |
Instruments and voices that can play F5
Frequently asked questions
What is the frequency of F5?
F5 is 698.46 Hz when A4 = 440 Hz (685.76 Hz if A4 = 432 Hz).
What MIDI number is F5?
F5 is MIDI note number 77.
Is F5 on a piano?
Yes – it is key 57 of 88.
Where is F5 on the guitar?
In standard tuning: 3rd string (G), fret 22; 2nd string (B), fret 18; 1st string (high E), fret 13.