To use the calculator below, input a value into the field and hit the enter key. The result will appear below.
You can choose different calculations from the drop down menu.

Note that to convert from dBm to dBW, simply subtract 30 from the dBm value. For example:
30 dBm = 0 dBW, which is another way of saying that 1,000 milliwatts equals one Watt.

You may also like our dB to Power and Voltage calculators.