# dBm to mW Conversion

### dBm to mW conversion calculator

Decibel-milliwatts (dBm) to milliwatts (mW), power conversion calculator.

Enter the power in dBm and press the Convert button:

 Enter power in dBm: dBm Milliwatts result: mW

mW to dBm conversion calculator ►

#### dBm to mW

dBm or dBmW (decibel-milliwatts) is a unit of level used to indicate that a power level is expressed in decibels (dB) with reference to one milliwatt (mW). It is used in radio, microwave and fiber-optical communication networks as a convenient measure of absolute power because of its capability to express both very large and very small values in a short form compared to dBW, which is referenced to one watt (1000 mW).

A milliwatt (mW) is one thousandth of a watt (W), or there are 1000 milliwatts in a watt. The watt is an SI derived unit of power. One watt is one joule of energy per second.

#### How to convert dBm to mW

The power conversion of dBm to mW is given by the formula:

P(mW) = 1mW ⋅ 10(P(dBm)/ 10)

So

1dBm = 1.258925mW

#### Example

Convert 13dBm to milliwatts:

P(mW) = 1mW ⋅ 10(13dBm/ 10) = 19.95mW

#### dBm to mW conversion table

Power (dBm) Power (mW)
-40 dBm 0.0001 mW
-30 dBm 0.001 mW
-20 dBm 0.01 mW
-10 dBm 0.1 mW
0 dBm 1 mW
1 dBm 1.2589 mW
2 dBm 1.5849 mW
3 dBm 1.9953 mW
4 dBm 2.5119 mW
5 dBm 3.1628 mW
6 dBm 3.9811 mW
7 dBm 5.0119 mW
8 dBm 6.3096 mW
9 dBm 7.9433 mW
10 dBm 10 mW
20 dBm 100 mW
30 dBm 1000 mW
40 dBm 10000 mW
50 dBm 100000 mW

mW to dBm conversion ►