Convert decibel (amplitude)s to ratios
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Show this value in all 10 ratio & decibels units
- Ratios × 1.122 018 454 3
- Decibel (power)s dB 0.5
- Decibel (amplitude)s dB 1
- Bels B 0.05
- Nepers Np 0.115 129 254 65
- Decades dec 0.05
- Octaves oct 0.166 096 404 744
- Semitones st 1.993 156 856 93
- Cents ¢ 199.315 685 693
- Stop (photographic)s EV 0.166 096 404 744
Every row is Decibel (amplitude) (dB) converted through the ratio, in exact rational arithmetic.
How to convert decibel (amplitude)s to ratios
Convert through a plain ratio: decibel (amplitude) → ratio → ratio. Logarithmic units cannot be converted by multiplying alone.
Decibel (amplitude): For voltage, pressure and other field quantities. 6 dB is roughly double the amplitude — and the same fourfold change in power.
Ratio: The plain multiplier every logarithmic unit here converts through. Read a decibel figure as an encoding of this number.
Decibel (amplitude) to Ratio conversion table
| Decibel (amplitude)s (dB) | Ratios (×) |
|---|---|
| 0 dB | 1 |
| 1 dB | 1.122 018 5 |
| 2 dB | 1.258 925 4 |
| 3 dB | 1.412 537 5 |
| 6 dB | 1.995 262 3 |
| 10 dB | 3.162 277 7 |
| 20 dB | 10 |
| 30 dB | 31.622 777 |
| 40 dB | 100 |
| 60 dB | 1000 |
| 80 dB | 10 000 |
| 100 dB | 100 000 |
Ratio to Decibel (amplitude) conversion table
| Ratios (×) | Decibel (amplitude)s (dB) |
|---|---|
| 1 × | 0 |
| 2 × | 6.020 599 9 |
| 3 × | 9.542 425 1 |
| 5 × | 13.9794 |
| 10 × | 20 |
| 20 × | 26.0206 |
| 25 × | 27.9588 |
| 50 × | 33.9794 |
| 100 × | 40 |
| 250 × | 47.9588 |
| 500 × | 53.9794 |
| 1000 × | 60 |
Frequently asked
How many ratios are in a decibel (amplitude)?
One decibel (amplitude) equals 1.122018454 ratios (dB → ×).
How do you convert decibel (amplitude)s to ratios?
Convert through a plain ratio: decibel (amplitude) → ratio → ratio. Logarithmic units cannot be converted by multiplying alone.
What is 1 × in decibel (amplitude)s?
One ratio is 0 decibel (amplitude)s.
What is 10 dB in ×?
10 dB = 3.162 277 7 ×.
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.
What exactly is a ratio?
The plain multiplier every logarithmic unit here converts through. Read a decibel figure as an encoding of this number.