dBm to Watts Converter

dBm to Watts Calculator

Enter Power (dBm):

What is dBm to Watts Converter?

A dBm to Watts converter is a very useful tool in converting any power measurement that exists in dBm, or decibel-milliwatts, to watts. This conversion is very familiar in the fields of telecommunications, electronics, and audio engineering since it allows a precise measurement of signal strength and power output. In simple words, dBm is a logarithmic quantity that means power relative to 1 milliwatt, whereas watts is the unit that measures energy per unit time.

you can also calculate watts from dBm using the dBm to watts formula given below: P_(W) = 1W ⋅ 10^(P(dBm) ^{/ 10)} / 1000 = 10^((P(dBm)^{– 30) / 10)}

dBm to Watts Conversion

Formula: Convert dBm to Watts

To convert a power level from dBm to watts:

$P_{W} = 10^{(\frac{P_{dBm} - 30}{10})}$

Where:

$P_{W}$ = Power in watts
$P_{dBm}$ = Power in dBm

Example Calculation

If the power is 20 dBm:

$P_{W} = 10^{(\frac{20 - 30}{10})} = 0.1 watts$

dBm to Watts Chart

dBm	Watts
-30 dBm	0.000001 W
-20 dBm	0.00001 W
-10 dBm	0.0001 W
0 dBm	0.001 W
10 dBm	0.01 W
20 dBm	0.1 W
30 dBm	1 W
40 dBm	10 W
50 dBm	100 W

How to use dBm to Watts Calculator?

Enter the power in dBm.
Click “Convert.”
View the result in Watts.
Repeat for more conversions if needed.