This is a multiconversion converter which converts the electric power units of different scales into each other. Power units that you can interconvert here include dBW(decibel Watt) dBm (decibel milliwatt), mW(milliwatt), and W(watt).
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 ⋅ log10( 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
Convert dBW to dBm, watt, milliwatt.
Enter the power in one of the text boxes and press the Convert button:
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 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 ⋅ log10( P(W) / 1W)
For example: what is the power in dBW for power consumption of 100W?
Solution:
P(dBW) = 10 ⋅ log10( 100W / 1W) = 20dBW
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 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
| 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 |
To convert from dBm to dBW, you need to subtract 30 of the dBm number. For example, 30 dBm = zero dBW that is another method of saying that 1000 milliwatts = one Watt.