Converter group
Other Converters
Sound Converter
Result
... Bel = ... Neper
Find the units to convert
Bel to Neper Converter
Use this page to convert bel values into neper, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 B = 1.15129254649702 Np
1 Np = 0.868588963806504 B
Example: 8 B = 9.21034037197618 Np
Jump to another pair
Bel
A logarithmic unit used to express the ratio of a physical quantity to a specified or implied reference level.
History: Named after Alexander Graham Bell.
Current use: Rarely used directly; the decibel is much more common.
Also written as B, bels.
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.
Bel to Neper table
| Bel [B] | Neper [Np] |
|---|---|
| 0.01 B | 0.0115129254649702 Np |
| 0.1 B | 0.115129254649702 Np |
| 1 B | 1.15129254649702 Np |
| 2 B | 2.30258509299405 Np |
| 5 B | 5.75646273248512 Np |
| 10 B | 11.5129254649702 Np |
| 20 B | 23.0258509299405 Np |
| 50 B | 57.5646273248512 Np |
| 100 B | 115.129254649702 Np |
Frequently asked questions
How many Neper (Np) are in one Bel (B)?
One Bel equals 1.15129254649702 Neper.
How do you convert Bel to Neper?
Multiply the Bel value by 1.15129254649702 to get the result in Neper.
How do you convert Neper back to Bel?
Multiply the Neper value by 0.868588963806504 to get back to Bel.
What is 8 Bel in Neper?
8 Bel equals 9.21034037197618 Neper.