F♯2 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.
| Reference | F♯2 | vs 440 |
|---|---|---|
| A4 = 415 Hz · Baroque pitch | 87.24 Hz | −101.3¢ |
| A4 = 432 Hz · “Verdi” pitch | 90.82 Hz | −31.8¢ |
| A4 = 440 Hz · Standard (ISO 16) | 92.50 Hz | — |
| A4 = 442 Hz · Orchestral | 92.92 Hz | +7.9¢ |
One cycle of F♯2 lasts 10.811 ms, and its wavelength in air at 20 °C is 3.71 m. Hold it as a steady tone in the tone generator.
F♯2 on the piano
F♯2 is key 22 of 88, counting from the bottom — the black key between F and G. Press any key below to compare it with its neighbours.
F♯2 on the guitar
In standard tuning F♯2 is played in 1 place: 6th (low E) string, fret 2. The same pitch in each place, with a different tone: lower strings sound warmer. Guitar music is written an octave higher than it sounds, so on a guitar part this note is printed as F♯3.
F♯2 on the staff
Instruments that can play F♯2
23 instruments play F♯2 within the normal range. Each links to its range chart; for a transposing instrument, the note on its part is shown.
Bowed strings
Guitars and basses
Woodwind
Keyboards and free reeds
Voices: F♯2 is inside the typical range of the bass. Test your own range.
The harmonics of F♯2
A played F♯2 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.
| Harmonic | Frequency | Nearest note | Off by |
|---|---|---|---|
| 1 (fundamental) | 92.50 Hz | F♯2 | 0¢ |
| 2 | 185.00 Hz | F♯3 | 0¢ |
| 3 | 277.50 Hz | C♯4 | +2.0¢ |
| 4 | 369.99 Hz | F♯4 | 0¢ |
| 5 | 462.49 Hz | B♭4 | −13.7¢ |
| 6 | 554.99 Hz | C♯5 | +2.0¢ |
| 7 | 647.49 Hz | E5 | −31.2¢ |
| 8 | 739.99 Hz | F♯5 | 0¢ |
Frequently asked questions
What is the frequency of F♯2?
F♯2 is 92.50 Hz in equal temperament with A4 tuned to 440 Hz, the international standard. At A4 = 432 Hz it is 90.82 Hz, and at the orchestral A4 = 442 Hz it is 92.92 Hz.
Is F♯2 the same note as G♭2?
On a piano, a guitar or a tuner, yes: F♯2 and G♭2 are the same key and the same frequency, 92.50 Hz, in equal temperament. They are two names for one pitch (enharmonic equivalents). Which one is written depends on the key — sharps in sharp keys, flats in flat keys — and a string or wind player may pitch them a few cents apart when playing in just intonation.
How do I play F♯2 on a piano?
F♯2 is key 22 of 88, counting from the bottom — the black key between F and G.
Which instruments can play F♯2?
23 of the instruments we chart play F♯2 within their normal range, including cello, double bass, guitar, 7-string guitar, 8-string guitar.
Typing it? F♯2 is also written F#2 or Gb2. Convert any frequency on the Hz-to-note converter.