W to DecibelW Conversion
Milliwatt to dBm power converter
mW or W to dBm or dBW Power Converter
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Decibel conversion of electric power units. W to dBm (dBmilliwatt) and/or dBW (dBWatt). On this page you can find the answer to the question: What is 2 W in Decibel W or 2 W to DecibelWs. Use the Use the Watts to Decibel Converter above to convert any W values to dBm or dBW.
Watt (W), milliwatt (mW) Conversion Table
Power (mW)  Power (dBm) 

0.01 mW  20.0000 dBm 
0.1 mW  10.0000 dBm 
1 mW  0.0000 dBm 
2 mW  3 dBm 
3 mW  4.8 dBm 
4 mW  6 dBm 
5 mW  7 dBm 
6 mW  7.8 dBm 
7 mW  8.5 dBm 
8 mW  9 dBm 
9 mW  9.5 dBm 
10 mW  10 dBm 
100 mW  20 dBm 
1000 mW  30 dBm 
10000 mW  40 dBm 
100000 mW  50 dBm 
1000000 mW  60 dBm 
10000000 mW  70 dBm 
100000000 mW  80 dBm 
1000000000 mW  90 dBm 
10000000000 mW  100 dBm 
mW to dBm Conversion
dBm Definition: dBm is the power ratio in decibels (dB) of the measured power referenced to one milliwatt (mW).
The formula bellow can be translated as: "the power P(dBm) in dBm is equal to 10 times the base 10 logarithm of the power P(mW) in milliwatts (mW) divided by 1 milliwatt (mW)":
P(dBm) = 10 · log10(^{P(mW)}/_{1mW})So, for P = 1 mW is equal to 0 dBm
Example:
Convert 100 mW to dBm:
P(dBm) = 10 · log10(100mW / 1mW) = 20 dBm
W to dBW Conversion
The decibelwatt or dBW isthe power ratio in decibels (dB) of the measured power referenced to one Watt (W).:
P(dBW) = 10 · log10(^{P(W)}/_{1W})Example:
Convert 10 W to dBW:
P(dBW) = 10 · log10(10W / 1W) = 10 dBW
mW to dBm Conversion
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