dBm to Milliwatts Calculator

dBm to Milliwatts Calculator

Try our new dBm/dBW/dBuV calculator - more conversions now available!

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



The equation to get the dBm value from milliwatts is:

The equation to get milliwatts from a dBm value is:



Fixed issue with certain browsers

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