# Decibel-Watt (dBW)

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

### dBW definition

dBW or *decibel-watt* is a unit of power in decibel scale, referenced to 1 watt (W).

The power in decibel-watts (*P*_{(dBW)}) is equal to 10 times base 10 logarithm of the power in watts (*P*_{(W)}):

*P*_{(dBW)} = 10 · log_{10}( *P*_{(W)} / 1W)

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

*P*_{(W)} = 1W · 10^{(P}(dBW)^{/ 10)}

1 watt is equal to 0 dBW:

1W = 0dBW

1 milliwatt is equal to -30dBW:

1mW = 0.001W = -30dBW

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

Convert dBW to dBm, watt, milliwatt.

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

### How to convert dBW to Watt

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

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

*P*_{(W)} = 1W · 10^{(P}(dBW)^{/ 10)}

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

Solution:

*P*_{(W)} = 1W · 10^{(20dBW} ^{/ 10)} = 100W

### How to convert Watt to dBW

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

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

*P*_{(dBW)} = 10 · log_{10}( *P*_{(W)} / 1W)

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

Solution:

*P*_{(dBW)} = 10 · log_{10}( 100W / 1W) = 20dBW

### 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

### dBW to dBm, Watt conversion table

Power (dBW) | Power (dBm) | Power (Watt) |
---|---|---|

-130 dBW | -100 dBm | 0.1 pW |

-120 dBW | -90 dBm | 1 pW |

-110 dBW | -80 dBm | 10 pW |

-100 dBW | -70 dBm | 100 pW |

-90 dBW | -60 dBm | 1 nW |

-80 dBW | -50 dBm | 10 nW |

-70 dBW | -40 dBm | 100 nW |

-60 dBW | -30 dBm | 1 μW |

-50 dBW | -20 dBm | 10 μW |

-40 dBW | -10 dBm | 100 μW |

-30 dBW | 0 dBm | 1 mW |

-20 dBW | 10 dBm | 10 mW |

-10 dBW | 20 dBm | 100 mW |

-1 dBW | 29 dBm | 0.794328 W |

0 dBW | 30 dBm | 1.000000 W |

1 dBW | 31 dBm | 1.258925 W |

10 dBW | 40 dBm | 10 W |

20 dBW | 50 dBm | 100 W |

30 dBW | 60 dBm | 1 kW |

40 dBW | 70 dBm | 10 kW |

50 dBW | 80 dBm | 100 kW |

60 dBW | 90 dBm | 1 MW |

70 dBW | 100 dBm | 10 MW |

80 dBW | 110 dBm | 100 MW |

90 dBW | 120 dBm | 1 GW |

100 dBW | 130 dBm | 10 GW |