How the calculation works
dBu = 20 log10(Vrms / 0.775)
dBV = 20 log10(Vrms / 1.000)
Vpeak = Vrms × √2 | Vpp = 2 × Vpeak
Worked example
Enter a value above to see the conversion.
Audio calculator 09
Audio Level Converter
Convert common analogue audio level units including dBu, dBV, RMS voltage, peak voltage and peak-to-peak voltage.
Convert
Reference levelsAudio
0 dBu = 0.775 Vrms
0 dBV = 1.000 Vrms
+4 dBu ≈ 1.228 Vrms
−10 dBV ≈ 0.316 Vrms
0 dBV = 1.000 Vrms
+4 dBu ≈ 1.228 Vrms
−10 dBV ≈ 0.316 Vrms