Convert a loudness level in phons to a perceived sone value.
One sone is set at forty phons, and every ten-phon rise doubles the perceived loudness in sones. Perceived loudness is nonlinear, so sones describe what a doubling really sounds like better than raw decibels do.
Loudness in Sones
Sones = 2^((phons - 40) / 10)
Sones = 2^((phons - 40) / 10) One sone is set at forty phons, and every ten-phon rise doubles the perceived loudness in sones.
Perceived loudness is nonlinear, so sones describe what a doubling really sounds like better than raw decibels do.
This calculator takes 1 input: Loudness level. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.