F#1 — 46.25 Hz
F#1 (MIDI 30) vibrates 46.25 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
F#1 at different reference pitches
| Reference (A4) | F#1 frequency | Used for |
|---|---|---|
| 415 Hz | 43.62 Hz | Baroque pitch |
| 432 Hz | 45.41 Hz | “Verdi” pitch |
| 440 Hz | 46.25 Hz | Standard concert pitch |
| 442 Hz | 46.46 Hz | European orchestras |
| 444 Hz | 46.67 Hz | European orchestras |
Physical properties
- Period: one cycle every 21.62 ms
- Wavelength in air: ≈ 7.42 m (at 20 °C, 343 m/s)
- MIDI note number: 30
- Octave up: F#2 = 92.50 Hz · Octave down: 23.12 Hz