This tool converts a deciBel (dB) value to its equivalent normal or linear value.

Enter the dB value

**Formula**

**P _{dB} = 10*Log_{10}(P1/P2)**

**P _{dB} = 20*Log_{10}(V1/V2)**

and therefore the normal values for the Power and Voltage ratios

**P1/P2 = 10 ^{(PdB/10)}**

**V1/V2 = 10 ^{(PdB/20)}**

**Example Calculations**

A 10 dB value gives a power ratio of 10 and a voltage ratio of 3.162.

A -10 dB value gives a power ratio of 0.1 and a voltage ratio of 0.3162.

Note that negative dB values have a higher voltage ratio value than power ratio. The reverse is true for positive dB values.

**Summary**

This simple calculator helps convert dB values into normal linear power ratios and voltage or current ratios, making it easier to understand and apply these measurements in various practical scenarios.