Conversion reference
Example: 1 W = 30 dBm. This pair uses an offset or logarithmic scale, so it is not a simple multiplication-only ratio.
Watts to Decibels-milliwatt Converter
Convert Watts (W) to Decibels-milliwatt (dBm). Change either field to update the other value instantly.
W and dBm converter
This page converts power units directly in your browser.
W to dBm conversion table
| Watts | Decibels-milliwatt |
|---|
W to dBm formula
About W
Watts are used in power conversions. Enter a W value above to calculate dBm instantly.
About dBm
Decibels-milliwatt are the target unit on this page. The table below gives common reference values for quick comparison.
Convert other units to dBm
These pages use dBm as the target unit.