Volts RMS to dBu
Type a value in V to get it in dBu instantly.
14.26dBu
That's 3.3× as hot as professional line level, while the top of the headroom is 3.1× hotter. That is about 4 volts RMS.
Convert the other way: dBu to V
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 V to dBu
The two references differ by 2.2 dB: dBu = dBV + 2.2. In volts, dBu = 20 × log₁₀(V ÷ 0.7746).
Example: 4 V = 14.2597 dBu.
Every unit
Your level in every unit
Tables
V to dBu conversion table
| V | dBu |
|---|---|
| 0.000775 V | -59.9955 dBu |
| 0.00775 V | -39.9955 dBu |
| 0.0775 V | -19.9955 dBu |
| 0.245 V | -9.99819 dBu |
| 0.388 V | -6.00488 dBu |
| 0.775 V | 0.00452155 dBu |
| 1.23 V | 4.01659 dBu |
| 2.45 V | 10.0018 dBu |
| 7.75 V | 20.0045 dBu |
| 12.3 V | 24.0166 dBu |
| 24.5 V | 30.0018 dBu |
dBu to V conversion table
| dBu | V |
|---|---|
| -60 dBu | 0.000774597 V |
| -40 dBu | 0.00774597 V |
| -20 dBu | 0.0774597 V |
| -10 dBu | 0.244949 V |
| -6 dBu | 0.388218 V |
| 0 dBu | 0.774597 V |
| 4 dBu | 1.22765 V |
| 10 dBu | 2.44949 V |
| 20 dBu | 7.74597 V |
| 24 dBu | 12.2765 V |
| 30 dBu | 24.4949 V |
Quick answers
Quick answers
- How many dBu is 1 V?
- 1 V is 2.21849 dBu.
- How many dBu is 10 V?
- 10 V is 22.2185 dBu.
- How many dBu is 4 V?
- 4 V is 14.2597 dBu.
The units
About these units
Volts RMS (V)
The actual signal voltage, as a meter reads it.
dBu (dBu)
Decibels against 0.7746 volts, the professional audio reference.
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