Bels to Decibels Converter
1 bel (B) equals 10 decibels (dB).
Quick answer
- 1 bel = 10 decibels
- 1 decibel = 0.1 bels
- Formula: dB = B × 10
1 bel = 10 decibels
How to convert bels to decibels
dB = B × 10
To convert bels to decibels, multiply the number of bels by 10.
Example: 18 B to dB
- Start with the value in bels: 18 B.
- Multiply by 10: 18 × 10 = 180.
- Result: 18 bels = 180 decibels.
Going the other way, 1 decibel = 0.1 bels, so to convert decibels back to bels you divide by the same number. See decibels to bels.
Bels to decibels conversion table
| Bels (B) | Decibels (dB) |
|---|---|
| 0.25 B | 2.5 dB |
| 0.5 B | 5 dB |
| 0.75 B | 7.5 dB |
| 1 B | 10 dB |
| 1.5 B | 15 dB |
| 2 B | 20 dB |
| 2.5 B | 25 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 |
| 11 B | 110 dB |
| 12 B | 120 dB |
| 13 B | 130 dB |
| 14 B | 140 dB |
| 15 B | 150 dB |
| 16 B | 160 dB |
| 17 B | 170 dB |
| 18 B | 180 dB |
| 19 B | 190 dB |
| 20 B | 200 dB |
| 21 B | 210 dB |
| 22 B | 220 dB |
| 23 B | 230 dB |
| 24 B | 240 dB |
| 25 B | 250 dB |
| 26 B | 260 dB |
| 27 B | 270 dB |
| 28 B | 280 dB |
| 29 B | 290 dB |
| 30 B | 300 dB |
| 31 B | 310 dB |
| 32 B | 320 dB |
| 33 B | 330 dB |
| 34 B | 340 dB |
| 35 B | 350 dB |
More B to dB values
What is a bel?
The bel, named after Alexander Graham Bell, is the base-10 logarithm of a power ratio.
What is a decibel?
The decibel is a logarithmic unit for ratios, one tenth of a bel.
Convert bels to other units
Convert other units to decibels
Frequently asked questions
How many decibels are in a bel?
One bel is 10 decibels.
How many bels are in a decibel?
One decibel is 0.1 bels.
What is the formula to convert bels to decibels?
dB = B × 10.