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 |