Bels to Decibels (B to dB)
Free online bel to decibel converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
SOUND CONVERTER — INSTANT RESULT
Formula: multiply the bel value by 10 — i.e. dB = B × 10
Quick check: 1 B = 10 dB
Quick check: 1 B = 10 dB
Bels to Decibels conversion table
| Bels (B) | Decibels (dB) |
|---|---|
| 1 B | 10 dB |
| 2 B | 20 dB |
| 3 B | 30 dB |
| 4 B | 40 dB |
| 5 B | 50 dB |
| 6 B | 60 dB |
| 7 B | 70 dB |
| 8 B | 80 dB |
| 9 B | 90 dB |
| 10 B | 100 dB |
| 15 B | 150 dB |
| 20 B | 200 dB |
| 25 B | 250 dB |
| 30 B | 300 dB |
| 40 B | 400 dB |
| 50 B | 500 dB |
| 75 B | 750 dB |
| 100 B | 1,000 dB |
| 250 B | 2,500 dB |
| 500 B | 5,000 dB |
| 1,000 B | 10,000 dB |
How to convert bels to decibels
To convert bels to decibels, multiply the amount in bels by 10. For example, 10 B = 100 dB. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert sound level units between bels, decibels and nepers. One bel equals 10 decibels; one neper equals about 8.686 dB.
Frequently asked questions
How many decibels are in one bel?
One bel is exactly 10 decibels.
How do I convert B to dB?
Multiply the B value by 10 to get dB. The converter at the top of this page does this automatically and works in both directions.
How much is 100 bels in decibels?
100 bels equals 1,000 decibels.