Convert decibel (power)s to decibel (amplitude)s
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- Ratios × 1.258 925 411 79
- Decibel (power)s dB 1
- Decibel (amplitude)s dB 2
- Bels B 0.1
- Nepers Np 0.230 258 509 299
- Decades dec 0.1
- Octaves oct 0.332 192 809 489
- Semitones st 3.986 313 713 86
- Cents ¢ 398.631 371 386
- Stop (photographic)s EV 0.332 192 809 489
Every row is Decibel (power) (dB) converted through the ratio, in exact rational arithmetic.
How to convert decibel (power)s to decibel (amplitude)s
Convert through a plain ratio: decibel (power) → ratio → decibel (amplitude). Logarithmic units cannot be converted by multiplying alone.
Decibel (power): Ten times the base-10 log of a power ratio. 3 dB is roughly double the power.
Decibel (amplitude): For voltage, pressure and other field quantities. 6 dB is roughly double the amplitude — and the same fourfold change in power.
Decibel (power) to Decibel (amplitude) conversion table
| Decibel (power)s (dB) | Decibel (amplitude)s (dB) |
|---|---|
| 0 dB | 0 |
| 1 dB | 2 |
| 2 dB | 4 |
| 3 dB | 6 |
| 6 dB | 12 |
| 10 dB | 20 |
| 20 dB | 40 |
| 30 dB | 60 |
| 40 dB | 80 |
| 60 dB | 120 |
| 80 dB | 160 |
| 100 dB | 200 |
Decibel (amplitude) to Decibel (power) conversion table
| Decibel (amplitude)s (dB) | Decibel (power)s (dB) |
|---|---|
| 0 dB | 0 |
| 1 dB | 0.5 |
| 2 dB | 1 |
| 3 dB | 1.5 |
| 6 dB | 3 |
| 10 dB | 5 |
| 20 dB | 10 |
| 30 dB | 15 |
| 40 dB | 20 |
| 60 dB | 30 |
| 80 dB | 40 |
| 100 dB | 50 |
Frequently asked
How many decibel (amplitude)s are in a decibel (power)?
One decibel (power) equals 2 decibel (amplitude)s (dB → dB).
How do you convert decibel (power)s to decibel (amplitude)s?
Convert through a plain ratio: decibel (power) → ratio → decibel (amplitude). Logarithmic units cannot be converted by multiplying alone.
What is 1 dB in decibel (power)s?
One decibel (amplitude) is 0.5 decibel (power)s.
What is 10 dB in dB?
10 dB = 20 dB.
What exactly is a decibel (power)?
Ten times the base-10 log of a power ratio. 3 dB is roughly double the power.
What exactly is a decibel (amplitude)?
For voltage, pressure and other field quantities. 6 dB is roughly double the amplitude — and the same fourfold change in power.