|Decibel (dB) Calculator
Decibel is defined as ten times the logarithm of a power ratio. Or twenty times the logarithm of a voltage (current) ratio. This calculator converts between decibels for a voltage (current) ratio or effect ratio. Just fill in one field and press Convert. The calculator will convert the other two fields.
dB = 20log10(V1/V2) og 20log10(I1/I2) eller 10log10(P1/P2)
In the case of a damping insert dB as a negative number.