This tool converts a deciBel number (dB) to its decimal equivalent.

**Formula**

Converting a decimal (which typically represents a power ratio) to decibels (dB) involves using logarithmic calculations. Decibels are a logarithmic unit used to express ratios, particularly in the fields of acoustics and electronics.

The output power divided by the input power is the decimal ratio

**P _{decimal} = P_{OUT}/P_{IN}**

and

**P _{dB} = 10*Log_{10}(P_{decimal})**

or

**P _{decimal}** =

**10**

^{(PdB/10)}**Example Calculations**

Let’s say an amplifier module amplifies the input signal power by 30 dB.

In this case, the ratio of output to input power expressed as a decimal number is 1000.