dBu to millivolts RMS
Type a value in dBu to get it in mV instantly.
1,227.653mV
That's about the same as professional line level. That is about 1.228 volts RMS.
What it means
How hot is that signal?
dBFS depends on the converter’s alignment. The +4 dBu = −20 dBFS used here is the common broadcast standard; some studios align at −18 or −14.
The math
How to convert dBu to mV
The two references differ by 2.2 dB: dBu = dBV + 2.2. In volts, dBu = 20 × log₁₀(V ÷ 0.7746).
Example: 4 dBu = 1,227.65 mV.
Every unit
Your level in every unit
Tables
dBu to mV conversion table
| dBu | mV |
|---|---|
| -60 dBu | 0.774597 mV |
| -40 dBu | 7.74597 mV |
| -20 dBu | 77.4597 mV |
| -10 dBu | 244.949 mV |
| -6 dBu | 388.218 mV |
| 0 dBu | 774.597 mV |
| 4 dBu | 1,227.65 mV |
| 10 dBu | 2,449.49 mV |
| 20 dBu | 7,745.97 mV |
| 24 dBu | 12,276.5 mV |
| 30 dBu | 24,494.9 mV |
mV to dBu conversion table
| mV | dBu |
|---|---|
| 0.775 mV | -59.9955 dBu |
| 7.75 mV | -39.9955 dBu |
| 77.5 mV | -19.9955 dBu |
| 245 mV | -9.99819 dBu |
| 388 mV | -6.00488 dBu |
| 775 mV | 0.00452155 dBu |
| 1,230 mV | 4.01659 dBu |
| 2,450 mV | 10.0018 dBu |
| 7,750 mV | 20.0045 dBu |
| 12,300 mV | 24.0166 dBu |
| 24,500 mV | 30.0018 dBu |
Quick answers
Quick answers
- How many mV is 1 dBu?
- 1 dBu is 869.112 mV.
- How many mV is 10 dBu?
- 10 dBu is 2,449.49 mV.
- How many mV is 4 dBu?
- 4 dBu is 1,227.65 mV.
The units
About these units
dBu (dBu)
Decibels against 0.7746 volts, the professional audio reference.
Millivolts RMS (mV)
For microphone and instrument level signals.
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