Solfeggio tone
285Hz
A low, rounded tone of the extended Solfeggio set, associated in sound-healing practice with restoration and renewal.
285 Hz · sine
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About this frequency
285 Hz is catalogued here as a solfeggio tone. A low, rounded tone of the extended Solfeggio set, associated in sound-healing practice with restoration and renewal. In modern listening practice it is commonly interpreted through the themes below — cultural readings rather than measured effects.
Where it comes from
285 Hz is one of the three tones added to the six-tone Solfeggio series as it was expanded and popularised in late twentieth-century sound-healing writing. It sits second in the extended set, between 174 Hz and 396 Hz.
What's happening acoustically
285 Hz falls between C#4 and D4 in standard tuning, just above middle C. Popular claims that it heals tissue are not supported by peer-reviewed evidence; its appeal lies in its warm register and its place in the sequence.
Nearby frequencies
174Hz
Solfeggio tone
The lowest tone of the extended Solfeggio set — low, wide and often described as a settling, foundational hum.
- Grounding
- Root energy
396Hz
Solfeggio tone
The first tone of the classic Solfeggio set, traditionally linked with releasing fear and returning to solid ground.
- Root chakra
- Liberation from fear
417Hz
Solfeggio tone
A tone often described as movement — associated in sound-healing traditions with change and clearing what has stalled.
- Sacral energy
- Creative flow