What is 174 Hz?
174 Hz is the lowest tone in the modern “Solfeggio frequencies” set; musically it is close to F3.
The Solfeggio frequencies are a list of tones — 174, 285, 396, 417, 528, 639, 741, 852 and 963 Hz — popularized from the 1970s onward and spread widely by books and online videos in the 1990s and 2000s. They are often described as an ancient scale, but the specific numbers are a modern invention; medieval solfège (ut, re, mi…) named notes, not fixed frequencies.
174 Hz is usually marketed for pain relief and a sense of security. 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.
Read more: Solfeggio Frequencies Explained: History, Claims and Evidence
| Nearest note (A4 = 440 Hz) | F3 (174.6 Hz), -6 cents |
|---|---|
| Wavelength in air | 197.1 cm |
| Period | 5.75 ms per cycle |
| Simulator Chladni mode | (1, 1) |
What the 174 Hz pattern looks like
In Star mode the low mode number gives a simple, bold star with a few arms.
The simulator above is already set to 174 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.
174 Hz FAQ
What note is 174 Hz?
174 Hz is very close to F3 (174.6 Hz) in standard A=440 tuning — only about 6 cents lower.
Are Solfeggio frequencies ancient?
No. Solfège syllables date back to the 11th century, but the list of specific Solfeggio frequencies was put together in the late 20th century.