# mW to dBm Conversion

Effortlessly convert milliwatts (mW) to decibel-milliwatts (dBm) with our convenient mW to dBm Conversion tool. Simply input the value in milliwatts, and our converter will provide you with the equivalent power in dBm. Whether for telecommunications, signal strength calculations, or RF engineering, our tool ensures accurate and quick conversions.

 Enter power in milliwatts: mW dBm result: dBm

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## What is mW to dBm Conversion

To convert milliwatts (mW) to decibel-milliwatts (dBm), you can use the following formula:

dBm = 10 * log10(mW)

In this formula, log10 represents the base-10 logarithm.

For example, let's convert 2.5 milliwatts to dBm:

dBm = 10 * log10(2.5) dBm ≈ 3.979 dBm

Therefore, 2.5 milliwatts is approximately equal to 3.979 dBm.

## How to convert mW to dBm

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,

1mW = 0dBm

### Example

Convert 20mW to dBm:,

P(dBm) = 10 ⋅ log10( 20mW / 1mW) = 13.0103dBm

## mW to dBm conversion table

Power (mW) Power (dBm)
0+ mW -∞ dBm
0.01 mW -20 dBm
0.1 mW -10 dBm
1 mW 0 dBm
2 mW 3.0103 dBm
3 mW 4.7712 dBm
4 mW 6.0206 dBm
5 mW 6.9897 dBm
6 mW 7.7815 dBm
7 mW 8.4510 dBm
8 mW 9.0309 dBm
9 mW 9.5424 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