Milliwatts To dBm Converter
Conversion Table
| Milliwatts | dBm |
|---|---|
| 0.001 mW | -30 dBm |
| 0.01 mW | -20 dBm |
| 0.1 mW | -10 dBm |
| 1 mW | 0 dBm |
| 10 mW | 10 dBm |
| 100 mW | 20 dBm |
| 1000 mW | 30 dBm |
| 10000 mW | 40 dBm |
| 100000 mW | 50 dBm |
Reverse Conversion
How This Converter Works
Converts positive milliwatt power to decibel-milliwatts relative to the 1 mW reference. Take the base-10 logarithm of the numeric milliwatt value and multiply by 10.
Formula or rule
dBm = 10 * log10(mW)
Example
- Input
- 100 mW
- Calculation
- Take the base-10 logarithm and multiply by 10: 10 * log10(100) = 10 * 2 = 20.
- Result
- 20 dBm