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... Decibel = ... Neper
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Decibel to Neper Converter
Use this page to convert decibel values into neper, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 dB = 0.115129254649702 Np
1 Np = 8.68588963806504 dB
Example: 8 dB = 0.921034037197618 Np
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Decibel
The most common unit for expressing sound level.
History: The decibel grew from telephone and audio engineering as a practical tenth-of-a-bel scale.
Current use: Acoustics, electronics, control theory.
Also written as dB, decibels, db.
Neper
A unit used to express ratios of quantities such as gain and loss in electronic and telecommunication signals.
History: Named after John Napier, the inventor of logarithms.
Current use: Scientific and engineering applications.
Also written as Np, nepers.
Decibel to Neper table
| Decibel [dB] | Neper [Np] |
|---|---|
| 0.01 dB | 0.00115129254649702 Np |
| 0.1 dB | 0.0115129254649702 Np |
| 1 dB | 0.115129254649702 Np |
| 2 dB | 0.230258509299405 Np |
| 5 dB | 0.575646273248511 Np |
| 10 dB | 1.15129254649702 Np |
| 20 dB | 2.30258509299405 Np |
| 50 dB | 5.75646273248512 Np |
| 100 dB | 11.5129254649702 Np |
Frequently asked questions
How many Neper (Np) are in one Decibel (dB)?
One Decibel equals 0.115129254649702 Neper.
How do you convert Decibel to Neper?
Multiply the Decibel value by 0.115129254649702 to get the result in Neper.
How do you convert Neper back to Decibel?
Multiply the Neper value by 8.68588963806504 to get back to Decibel.
What is 8 Decibel in Neper?
8 Decibel equals 0.921034037197618 Neper.