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1058 Views

Watt to dBm (free) Converter

03/03/2023, hardwarebee

Welcome to HardwareBee’s Watt to dBm calculator. This Watt to dBm converter is used by 500 engineers daily.
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Watt (W) and dBm (decibel-milliwatt) are both units of power, but they are on different scales. Watt is an absolute unit of power, while dBm is a relative unit of power relative to 1 milliwatt (mW).

 

To convert watts to dBm, you can use the following formula:

 

dBm = 10 x log10 (P/1mW)

where P is the power in watts.

 

For example, if you want to convert 1 watt to dBm, you would do:

dBm = 10 x log10 (1/0.001)
= 10 x log10 (1000)
= 10 x 3
= 30 dBm

 

So 1 watt is equal to 30 dBm.

Similarly, you can use this formula to convert any power in watts to dBm.

 

Here’s a table with some examples of power values converted from watts to dBm:

 

Power (W)     Power (dBm)
1 30 dBm
5 37 dBm
10 40 dBm
25 44 dBm
50 47 dBm
100 50 dBm
250 54 dBm
500 57 dBm
1000 60 dBm

 

As you can see, the dBm values increase as the power values increase, but the rate of increase is not linear – a doubling of power results in an increase of 3 dBm, not 1 dBm.

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