The core definition is accurate and helpful. A sonē (plural sones ) is a unit of loudness as perceived by the human ear. Unlike decibels (physical sound pressure), the sone scale is linear : a sound rated at 2 sones sounds twice as loud to most people as a sound at 1 sone. The standard reference is 1 sone = 40 dB above a young person’s hearing threshold (about the loudness of a quiet refrigerator or a very soft conversation).
If you simply searched “define sones,” most top results correctly give the unit and formula but often miss:
Here’s a concise, informative review of the phrase — treating it as a search query or request for a definition.
The term "sones" is most frequently encountered by consumers when purchasing or bathroom exhaust fans .
