Micropascals to decibels
Type a value in µPa to get it in dB instantly.
9.542dB
Nothing on our list is smaller: quiet breathing is 1.05× louder. That carries about 9×10⁻⁶× the sound energy of ordinary conversation.
Convert the other way: dB to µPa
What it means
How loud is that?
Decibels here are dB SPL, referenced to 20 micropascals, the quietest sound a young ear can detect.
The math
How to convert µPa to dB
Decibels are logarithmic: dB = 20 × log₁₀(pressure ÷ 20 µPa). Going back, pressure = 20 µPa × 10^(dB ÷ 20).
Example: 60 µPa = 9.54243 dB.
Every unit
Your sound level in every unit
Tables
µPa to dB conversion table
| µPa | dB |
|---|---|
| 10 µPa | -6.0206 dB |
| 20 µPa | 0 dB |
| 30 µPa | 3.52183 dB |
| 40 µPa | 6.0206 dB |
| 50 µPa | 7.9588 dB |
| 60 µPa | 9.54243 dB |
| 70 µPa | 10.8814 dB |
| 80 µPa | 12.0412 dB |
| 85 µPa | 12.5678 dB |
| 90 µPa | 13.0643 dB |
| 100 µPa | 13.9794 dB |
| 110 µPa | 14.8073 dB |
| 120 µPa | 15.563 dB |
| 130 µPa | 16.2583 dB |
dB to µPa conversion table
| dB | µPa |
|---|---|
| 10 dB | 63.2456 µPa |
| 20 dB | 200 µPa |
| 30 dB | 632.456 µPa |
| 40 dB | 2,000 µPa |
| 50 dB | 6,324.56 µPa |
| 60 dB | 20,000 µPa |
| 70 dB | 63,245.6 µPa |
| 80 dB | 200,000 µPa |
| 85 dB | 355,656 µPa |
| 90 dB | 632,456 µPa |
| 100 dB | 2,000,000 µPa |
| 110 dB | 6,324,560 µPa |
| 120 dB | 20,000,000 µPa |
| 130 dB | 63,245,600 µPa |
Quick answers
Quick answers
- How many dB is 1 µPa?
- 1 µPa is -26.0206 dB.
- How many dB is 10 µPa?
- 10 µPa is -6.0206 dB.
- How many dB is 60 µPa?
- 60 µPa is 9.54243 dB.
The units
About these units
Micropascals (µPa)
A millionth of a pascal. The hearing threshold is defined as 20 µPa.
Decibels (dB)
The standard measure of sound level, referenced to the threshold of hearing.
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