- dBm definition
- dBm to Watt, mW, dBW conversion calculator
- How to convert mW to dBm
- How to convert dBm to mW
- How to convert Watt to dBm
- How to convert dBm to Watt
- How to convert dBW to dBm
- How to convert dBm to dBW
- How to convert dB to dBm
- dBm to Watt, mW, dBW conversion table

### dBm definition

dBm or *decibel-milliwatt* is an electrical power unit in decibels (dB), referenced to 1 milliwatt (mW).

The power in decibel-milliwatts (*P*_{(dBm)}) is equal to 10 times base 10 logarithm of the power in milliwatts (*P*_{(mW)}):

*P*_{(dBm)} = 10 ⋅ log_{10}( *P*_{(mW)} / 1mW)

The power in milliwatts (*P*_{(mW)}) is equal to 1mW times 10 raised by the power in decibel-milliwatts (*P*_{(dBm)}) divided by 10:

*P*_{(mW)} = 1mW ⋅ 10^{(P}(dBm)^{ / 10)}

1 milliwatt is equal to 0 dBm:

1mW = 0dBm

1 watt is equal to 30dBm:

1W = 1000mW = 30dBm

### dBm to mW to Watt to dBW conversion calculator

Convert decibel-milliwatts to milliwatts, watts, decibel-watts.

Enter the power in one of the text boxes and press the *Convert* button:

### How to convert mW to dBm

How to convert power in milliwatts (mW) to dBm.

The power in dBm is equal to the base 10 logarithm of the power in milliwatts (mW):

*P*_{(dBm)} = 10 ⋅ log_{10}( *P*_{(mW)} / 1mW)

For example: what is the power in dBm for power consumption of 100mW?

Solution:

*P*_{(dBm)} = 10 ⋅ log_{10}( 100mW / 1mW) = 20dBm

### How to convert dBm to mW

How to convert power in dBm to milliwatts (mW).

The power in milliwatts (*P*_{(mW)}) is equal to 10 raised by the power in dBm (*P*_{(dBm)}) divided by 10?

*P*_{(mW)} = 1mW ⋅ 10^{(P}(dBm)^{ / 10)}

For example: what is the power in milliwatts for power consumption of 20dBm?

Solution:

*P*_{(mW)} = 1mW ⋅ 10^{(20dBm} ^{/ 10)} = 100mW

### How to convert Watt to dBm

How to convert power in watts (W) to dBm.

The power in dBm is equal to the base 10 logarithm of the power in watts (W) plus 30dB:

*P*_{(dBm)} = 10 ⋅ log_{10}( *P*_{(W)} / 1W) + 30

For example: what is the power in dBm for power consumption of 100W?

Solution:

*P*_{(dBm)} = 10 ⋅ log_{10}( 100W / 1W_{}) + 30 = 50dBm

### How to convert dBm to Watt

How to convert power in dBm to watts (W).

The power in watts (*P*_{(W)}) is equal to 10 raised by the power in dBm (*P*_{(dBm)}) minus 30dB divided by 10:

*P*_{(W)} = 1W ⋅ 10^{( (P}(dBm)^{- 30) / 10)}

For example: what is the power in watts for power consumption of 40dBm?

Solution:

*P*_{(W)} = 1W ⋅ 10^{( (40dBm - 30)} ^{/ 10)} = 10W

### How to convert dBW to dBm

How to convert power in dBW to dBm.

The power in dBm is equal to the base 10 logarithm of the power in watts (W):

*P*_{(dBm)} = *P*_{(dBW)} + 30

For example: what is the power in dBm for power consumption of 20dBW?

Solution:

*P*_{(dBm)} = 20dBW + 30 = 50dBm

### How to convert dBm to dBW

How to convert power in dBm to dBW.

The power in dBW (*P*_{(dBW)}) is equal to 10 raised by the power in dBm
(*P*_{(dBm)}) divided by 10:

*P*_{(dBW)} = *P*_{(dBm)} - 30

For example: what is the power in watts for power consumption of 40dBm?

Solution:

*P*_{(dBW)} = 40dBm - 30 = 10dBW

### How to convert dB to dBm

dB is a relative unit that describes gain and dBm is an absolute unit referenced to 1 milliwatt (mW).

So you can't convert dB to dBm.

### dBm to Watt, mW, dBW conversion table

Power (dBm) | Power (dBW) | Power (watt) | Power (mW) |
---|---|---|---|

-100 dBm | -130 dBW | 0.1 pW | 0.0000000001 mW |

-90 dBm | -120 dBW | 1 pW | 0.000000001 mW |

-80 dBm | -110 dBW | 10 pW | 0.00000001 mW |

-70 dBm | -100 dBW | 100 pW | 0.0000001 mW |

-60 dBm | -90 dBW | 1 nW | 0.000001 mW |

-50 dBm | -80 dBW | 10 nW | 0.00001 mW |

-40 dBm | -70 dBW | 100 nW | 0.0001 mW |

-30 dBm | -60 dBW | 1 μW | 0.001 mW |

-20 dBm | -50 dBW | 10 μW | 0.01 mW |

-10 dBm | -40 dBW | 100 μW | 0.1 mW |

-1 dBm | -31 dBW | 794 μW | 0.794 mW |

0 dBm | -30 dBW | 1.000 mW | 1.000 mW |

1 dBm | -29 dBW | 1.259 mW | 1.259 mW |

10 dBm | -20 dBW | 10 mW | 10 mW |

20 dBm | -10 dBW | 100 mW | 100 mW |

30 dBm | 0 dBW | 1 W | 1000 mW |

40 dBm | 10 dBW | 10 W | 10000 mW |

50 dBm | 20 dBW | 100 W | 100000 mW |

60 dBm | 30 dBW | 1 kW | 1000000 mW |

70 dBm | 40 dBW | 10 kW | 10000000 mW |

80 dBm | 50 dBW | 100 kW | 100000000 mW |

90 dBm | 60 dBW | 1 MW | 1000000000 mW |

100 dBm | 70 dBW | 10 MW | 10000000000 mW |

Currently, we have around 945 calculators, conversion tables and usefull online tools and software features for students, teaching and teachers, designers and simply for everyone.

You can find at this page financial calculators, mortgage calculators, calculators for loans, calculators for auto loan and lease calculators, interest calculators, payment calculators, retirement calculators, amortization calculators, investment calculators, inflation calculators, finance calculators, income tax calculators, compound interest calculators, salary calculator, interest rate calculator, sales tax calculator, fitness & health calculators, bmi calculator, calorie calculators, body fat calculator, bmr calculator, ideal weight calculator, pace calculator, pregnancy calculator, pregnancy conception calculator, due date calculator, math calculators, scientific calculator, fraction calculator, percentage calculators, random number generator, triangle calculator, standard deviation calculator, other calculators, age calculator, date calculator, time calculator, hours calculator, gpa calculator, grade calculator, concrete calculator, subnet calculator, password generator conversion calculator and many other tools and for text editing and formating, downloading videos from Facebok (we built one of the most famous Facebook video downloader online tools). We also provide you online downloanders for YouTube, Linkedin, Instagram, Twitter, Snapchat, TikTok and other social media sites (please note we does not host any videos on its servers. All videos that you download are downloaded from Facebook's, YouTube's, Linkedin's, Instagram's, Twitter's, Snapchat's, TikTok's CDNs. We also specialise on keyboard shortcuts, ALT codes for Mac, Windows and Linux and other usefull hints and tools (how to write emoji online etc.)

There are many very usefull online free tools and we would be happy if you share our page to others or send us any suggestions for other tools which will come on your mind. Also in case you find any of our tools that it does not work properly or need a better translation - please let us know. Our tools will make your life easier or simply help you to do your work or duties faster and in more effective way.

These below are the most commonly used by many users all over the world.

- Free online calculators and tools
- Free online units conversion tools
- Free online web design tools
- Free online electricity & electronics tools
- Mathematics
- Online Tools
- Text Tools
- PDF Tools
- Code
- Ecology
- Others
- Basic Electrical Terms
- Electrical & Electronic Units
- Electronic Components
- Electrical & Electronic Symbols
- Electronic Circuit Laws
- Ampere (A)
- Decibel-milliwatt (dBm)
- Decibel-Watt (dBW)
- Decibel (dB)
- Farad (F)
- Kilovolt-amp (kVA)
- Kilowatt (kW)
- Kilowatt-hour (kWh)
- Ohm (Ω)
- Volt (V)
- Watt (W)
- Lux unit definition
- Joule (J) unit
- Lumen (lm) unit

And we are still developing more. Our goal is to become the one-stop, go-to site for people who need to make quick calculations or who need to find quick answer for basic conversions.

Additionally, we believe the internet should be a source of free information. Therefore, all of our tools and services are completely free, with no registration required. We coded and developed each calculator individually and put each one through strict, comprehensive testing. However, please inform us if you notice even the slightest error – your input is extremely valuable to us. While most calculators on Justfreetools.com are designed to be universally applicable for worldwide usage, some are for specific countries only.