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F6: frequency and where to play it

1396.9 Hz

F6 in equal temperament at A4 = 440 Hz · MIDI note 89 · piano key 69 · Helmholtz f‴

F61396.9 Hzat A4 = 440 Hz

F6 at every common reference pitch

A note’s frequency depends on what A4 is tuned to. The standard is 440 Hz; the other three are the ones you are most likely to meet. The cents column is how far each one sits from the 440 version — the same for every note, because changing the reference moves the whole scale together.

ReferenceF6vs 440
A4 = 415 Hz · Baroque pitch1317.5 Hz−101.3¢
A4 = 432 Hz · “Verdi” pitch1371.5 Hz−31.8¢
A4 = 440 Hz · Standard (ISO 16)1396.9 Hz—
A4 = 442 Hz · Orchestral1403.3 Hz+7.9¢

One cycle of F6 lasts 715.9 µs, and its wavelength in air at 20 °C is 24.6 cm. Hold it as a steady tone in the tone generator.

F6 on the piano

F6 is key 69 of 88, counting from the bottom — a white key. Press any key below to compare it with its neighbours.

C2D2E2F2G2A2B2C3D3E3F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6D6E6F6G6A6B6C7D7E7F7G7A7B7C♯2E♭2F♯2A♭2B♭2C♯3E♭3F♯3A♭3B♭3C♯4E♭4F♯4A♭4B♭4C♯5E♭5F♯5A♭5B♭5C♯6E♭6F♯6A♭6B♭6C♯7E♭7F♯7A♭7B♭7C2C3C4C5C6C7F6

F6 on the guitar

F6 is above the highest fret of any standard guitar, so a guitar in standard tuning cannot play it.

F6 on the staff

Treble clef

Instruments that can play F6

19 instruments play F6 within the normal range, and 4 reach it only at the extreme of theirs. Each links to its range chart; for a transposing instrument, the note on its part is shown.

Bowed strings

Plucked and struck strings

Woodwind

Tuned percussion

Keyboards and free reeds

Only at the extreme of their range

F6 is outside the typical range of all six voice types. Test your own range.

The harmonics of F6

A played F6 is not one frequency. A string or a pipe also sounds whole-number multiples of it, and the mix of those harmonics is the instrument’s tone. Here is where the first eight land — and why the 7th sounds out of tune against a piano.

HarmonicFrequencyNearest noteOff by
1 (fundamental)1396.9 HzF60¢
22793.8 HzF70¢
34190.7 HzC8+2.0¢
45587.7 HzF80¢
56984.6 HzA8−13.7¢
68381.5 HzC9+2.0¢
79778.4 HzE♭9−31.2¢
811,175 HzF90¢

Frequently asked questions

What is the frequency of F6?

F6 is 1396.9 Hz in equal temperament with A4 tuned to 440 Hz, the international standard. At A4 = 432 Hz it is 1371.5 Hz, and at the orchestral A4 = 442 Hz it is 1403.3 Hz.

Which octave is F6 in?

The number is the octave in scientific pitch notation, where each octave starts on C and C4 is middle C. F6 is in octave 6, 29 semitones above middle C. In Helmholtz notation, used in older books, it is written f‴.

How do I play F6 on a piano?

F6 is key 69 of 88, counting from the bottom — a white key.

Which instruments can play F6?

19 of the instruments we chart play F6 within their normal range, including violin, viola, cello, erhu, mandolin, and 4 more reach it only at the extreme of their range.

Typing it? F6 is also written F6. Convert any frequency on the Hz-to-note converter.