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Sound Converter
Convert sound level units between bels, decibels and nepers. One bel equals 10 decibels; one neper equals about 8.686 dB.
SOUND CONVERTER — INSTANT RESULT
All supported units — sound
| Unit | Symbol | To bel (B) | From bel (B) |
|---|---|---|---|
| Bel | B | 1 B = 1 B | 1 B = 1 B |
| Decibel | dB | 1 dB = 0.1 B | 1 B = 10 dB |
| Neper | Np | 1 Np = 0.868596 B | 1 B = 1.15128322 Np |
Popular sound conversions
Frequently asked questions
What units does this sound converter support?
It supports 3 units: Bel (B), Decibel (dB), Neper (Np).
What is the base unit of sound?
The SI reference unit is the bel (B). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.