Professional Tool
Sound Unit Converter
Convert between different sound level units including decibels, phons, and nepers.
Sound Level Converter
Convert between different units of sound measurement.
Common Conversions
Quick reference for frequently used conversions
dB → B
1 dB = 0.1 B
B → dB
1 B = 10 dB
Np → dB
1 Np = 8.686 dB
Whisper → dB
~30 dB SPL
Conversation → dB
~60 dB SPL
Rock concert → dB
~110 dB SPL