F#5 — 739.99 Hz
F#5 (MIDI 78) vibrates 739.99 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
F#5 at different reference pitches
| Reference (A4) | F#5 frequency | Used for |
|---|---|---|
| 415 Hz | 697.94 Hz | Baroque pitch |
| 432 Hz | 726.53 Hz | “Verdi” pitch |
| 440 Hz | 739.99 Hz | Standard concert pitch |
| 442 Hz | 743.35 Hz | European orchestras |
| 444 Hz | 746.72 Hz | European orchestras |
Physical properties
- Period: one cycle every 1.35 ms
- Wavelength in air: ≈ 46.4 cm (at 20 °C, 343 m/s)
- MIDI note number: 78
- Octave up: F#6 = 1479.98 Hz · Octave down: 369.99 Hz