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SOUND CONVERSION

Bel to decibel

1 bel = 10 decibel. Enter your value for an instant conversion.

Sound converter
YOUR RESULT
1 B=10dB

FormulaResult = value × 10

Instant calculation

This tool converts level units, not sound pressure to sound intensity. For an amplitude ratio, 1 neper = 20 / ln(10) decibels. A reference level is needed to recover a physical amplitude.

B to dB: the formula

Result = value × 10

For example, 10 bel = 100 decibel.

Enter a decimal, a fraction such as 1/2, or scientific notation such as 1e3. Choose how many significant digits to display using the precision control.

Keep the same unit convention throughout your calculation. Regional and historical unit definitions can differ.

Reverse: decibel to bel →

Sources and calculation method →

B to dB table

beldecibel
1 B10 dB
2 B20 dB
3 B30 dB
5 B50 dB
10 B100 dB
20 B200 dB
50 B500 dB
100 B1000 dB
500 B5000 dB
1000 B10000 dB

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