Table Of Contents
Bel to decibel Conversion
1 bel (B) is equal to 10 decibel (dB).
1 B = 10 dB
or
1 dB = 0.1 B
Formula
To convert a sound level from bel (B) to decibel (dB), multiply the sound level in bel by 10
s(dB) = s(B) × 10
Examples:
Convert 250 bel to decibel:
s(dB) = 250B × 10 = 2500 dB
Conversion table
| Bel (B) | Decibel (dB) |
|---|---|
| 1 B | 10 dB |
| 2 B | 20 dB |
| 3 B | 30 dB |
| 5 B | 50 dB |
| 10 B | 100 dB |
| 20 B | 200 dB |
| 25 B | 250 dB |
| 50 B | 500 dB |
| 100 B | 1000 dB |
| 250 B | 2500 dB |
| 500 B | 5000 dB |
| 1000 B | 10000 dB |
| Decibel (dB) | Bel (B) |
|---|---|
| 1 dB | 0.1 B |
| 2 dB | 0.2 B |
| 3 dB | 0.3 B |
| 5 dB | 0.5 B |
| 10 dB | 1 B |
| 20 dB | 2 B |
| 25 dB | 2.5 B |
| 50 dB | 5 B |
| 100 dB | 10 B |
| 250 dB | 25 B |
| 500 dB | 50 B |
| 1000 dB | 100 B |
Frequently asked questions
How do I convert bel to decibel?
Multiply the value in bel by 10 to get the result in decibel. For example, 5 B × 10 = 50 dB.
How many decibel are in 1 bel?
1 bel (B) is equal to 10 decibel (dB).
How do I convert decibel back to bel?
Use the inverse operation: divide the value in decibel by 10 to get the result in bel.
How accurate is the bel to decibel conversion?
The converter multiplies by the conversion factor 10 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
