Decibel milliwatts to Watts Calculator

Convert dBmW (decibels relative to one milliwatt) to Watts power measurement

Input Parameters

Positive values represent power levels above 1 milliwatt

Calculation Results

Watts (W) Result

W

Where:
P(W) = 10(P(dBmW)/10) × 0.001
P(dBmW) is the power in decibels relative to one milliwatt

Decibel milliwatts to Watts Calculator Usage Guide

Learn how to use the Decibel milliwatts to Watts Calculator calculator and its working principles

What is dBmW?

Decibels relative to one milliwatt (dBmW) is a unit of power level used in telecommunications, radio, and other fields. It expresses the ratio of a power level to 1 milliwatt (mW) on a logarithmic scale.

How to use the calculator

  1. Enter the value in dBmW in the input field. For example, 0 dBmW equals exactly 1 milliwatt.
  2. Click the "Calculate" button to convert the value to Watts.
  3. The result will be displayed in Watts with high precision.

Calculation Formula

The conversion from dBmW to Watts follows this formula:

P(W) = 10(P(dBmW)/10) × 0.001

Where P(dBmW) is the power level in decibels relative to one milliwatt, and P(W) is the power in Watts.

Practical Applications

This calculator is useful in RF engineering, wireless communications, and audio systems where power levels are often specified in dBmW but need to be understood in terms of Watts for component selection and system design.