dB Calculator

dB Calculator

Input either a dB value or power ratio and hit 'enter' ('tab' if using Internet Explorer) to convert from one to the other.

dB:

Power Ratio:

The equation to get the dB value from a power ratio is:

The equation to get the power ratio from a dB value is:

Subscription: 

Comments

Fixed issue with power ratio to dB conversion

I fixed an issue with the conversion from power ratio to dB, caused by not all browsers supporting the JavaScript base-10 logarithm function yet.