Convert decibel (amplitude)s to decades
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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 decades
Convert through a plain ratio: decibel (amplitude) → ratio → decade. 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.
Decade: A factor of ten. Bode plots are drawn per decade.
Decibel (amplitude) to Decade conversion table
| Decibel (amplitude)s (dB) | Decades (dec) |
|---|---|
| 0 dB | 0 |
| 1 dB | 0.05 |
| 2 dB | 0.1 |
| 3 dB | 0.15 |
| 6 dB | 0.3 |
| 10 dB | 0.5 |
| 20 dB | 1 |
| 30 dB | 1.5 |
| 40 dB | 2 |
| 60 dB | 3 |
| 80 dB | 4 |
| 100 dB | 5 |
Decade to Decibel (amplitude) conversion table
| Decades (dec) | Decibel (amplitude)s (dB) |
|---|---|
| 0 dec | 0 |
| 1 dec | 20 |
| 2 dec | 40 |
| 3 dec | 60 |
| 6 dec | 120 |
| 10 dec | 200 |
| 20 dec | 400 |
| 30 dec | 600 |
| 40 dec | 800 |
| 60 dec | 1200 |
| 80 dec | 1600 |
| 100 dec | 2000 |
Frequently asked
How many decades are in a decibel (amplitude)?
One decibel (amplitude) equals 0.05 decades (dB → dec).
How do you convert decibel (amplitude)s to decades?
Convert through a plain ratio: decibel (amplitude) → ratio → decade. Logarithmic units cannot be converted by multiplying alone.
What is 1 dec in decibel (amplitude)s?
One decade is 20 decibel (amplitude)s.
What is 10 dB in dec?
10 dB = 0.5 dec.
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 decade?
A factor of ten. Bode plots are drawn per decade.