What is 285 Hz?
285 Hz is one of the modern Solfeggio frequencies; in standard tuning it falls between C♯4 and D4.
285 Hz is promoted online as a frequency for “tissue regeneration.” There is no reliable scientific evidence that listening to this frequency heals the body, repairs DNA or changes your mood beyond ordinary relaxation. Treat it as a musical tone and a beautiful pattern, not a treatment.
Musically it is about 48 cents above C♯4 — almost exactly halfway between C♯ and D — so it will sound slightly out of tune against instruments tuned to A=440.
Read more: Solfeggio Frequencies Explained: History, Claims and Evidence
| Nearest note (A4 = 440 Hz) | C♯4 (277.2 Hz), +48 cents |
|---|---|
| Wavelength in air | 120.4 cm |
| Period | 3.51 ms per cycle |
| Simulator Chladni mode | (1, 1) |
What the 285 Hz pattern looks like
Spiral mode turns the pattern into curling arms, a nice match for a tone that sits between two notes.
The simulator above is already set to 285 Hz. Press Play in the Slider tab to hear the tone, switch pattern modes to compare shapes, and use Record video or Export PNG to keep the result. The address bar always holds a link to exactly what you see, so you can share it.
285 Hz FAQ
What note is 285 Hz?
285 Hz is between C♯4 (277.2 Hz) and D4 (293.7 Hz), almost exactly a quarter tone above C♯4.