dB to Magnitude Conversion Calculator

This tool converts deciBel (dB) to Magnitude.

Enter the dB value and the tool will provide magnitude ratios of both the power and amplitude.


To convert decibels (dB) to magnitude, you can use the following formulas depending on whether you are dealing with power or amplitude:

For Power

When converting dB to a power ratio, use the formula:

Magnitude (Power Ratio)=10(dB/10)

For Amplitude

When converting dB to an amplitude ratio, use the formula:

Magnitude (Amplitude Ratio)=10(dB/20)

Example Calculations

10 dB converts to a Power Magnitude Ratio of 10 and an Amplitude Magnitude Ratio of 3.16