dB Power Ratio

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Power A

Power B


This calculation will give you the ratio, in decibels, between two power values. For example, you can calculate the difference in dB between two amplifiers with different power output specifications. 

Enter any two values and press "Calculate" for the remaining value. Press "Reset" before performing each calculation.

Equation used to calculate the data:
dB = 10 * Log (Pout / Pin)