Understanding RF Power Units and Conversions

Introduction

This guide explains the different RF power units and how to convert between them.

Common RF Power Units

  • Watt (W):
    The standard unit of power, representing the rate at which energy is transferred.

  • dBm:
    A logarithmic unit of power relative to 1 milliwatt (mW).

  • dBW:
    A logarithmic unit of power relative to 1 watt (W).

RF Power Conversions

  • Watts to dBm:
    dBm = 10 * log10(Power in Watts * 1000)