Convert decibel (power)s to semitones
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Show this value in all 10 ratio & decibels units
- 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 semitones
Convert through a plain ratio: decibel (power) → ratio → semitone. 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.
Semitone: Twelve-tone equal temperament: each semitone is the twelfth root of two.
Decibel (power) to Semitone conversion table
| Decibel (power)s (dB) | Semitones (st) |
|---|---|
| 0 dB | 0 |
| 1 dB | 3.986 313 7 |
| 2 dB | 7.972 627 4 |
| 3 dB | 11.958 941 |
| 6 dB | 23.917 882 |
| 10 dB | 39.863 137 |
| 20 dB | 79.726 274 |
| 30 dB | 119.589 41 |
| 40 dB | 159.452 55 |
| 60 dB | 239.178 82 |
| 80 dB | 318.9051 |
| 100 dB | 398.631 37 |
Semitone to Decibel (power) conversion table
| Semitones (st) | Decibel (power)s (dB) |
|---|---|
| 0 st | 0 |
| 1 st | 0.250 858 33 |
| 2 st | 0.501 716 66 |
| 3 st | 0.752 574 99 |
| 6 st | 1.505 15 |
| 10 st | 2.508 583 3 |
| 20 st | 5.017 166 6 |
| 30 st | 7.525 749 9 |
| 40 st | 10.034 333 |
| 60 st | 15.0515 |
| 80 st | 20.068 666 |
| 100 st | 25.085 833 |
Frequently asked
How many semitones are in a decibel (power)?
One decibel (power) equals 3.986313714 semitones (dB → st).
How do you convert decibel (power)s to semitones?
Convert through a plain ratio: decibel (power) → ratio → semitone. Logarithmic units cannot be converted by multiplying alone.
What is 1 st in decibel (power)s?
One semitone is 0.2508583297 decibel (power)s.
What is 10 dB in st?
10 dB = 39.863 137 st.
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 semitone?
Twelve-tone equal temperament: each semitone is the twelfth root of two.