Watt to dBm conversion calculator

Convert power in watts to power in dBm. This calculator can be used for RF (radio frequency) power level calculations, signal strength measurements, and wireless communication system design.

Input Parameters

Calculation Results

Calculation Result

Result will appear here

Where:
P (dBm) = 10 * log10(P (W) * 1000)
P (W) is the power in watts

Watt to dBm conversion calculator Usage Guide

Learn how to use the Watt to dBm conversion calculator and its working principles

How to Use the Calculator

  1. Enter the power value in watts (W) in the input field.
  2. Click the "Calculate" button to convert the power to dBm.
  3. The result in dBm will be displayed in the result field.
  4. If you want to start over, click the "Reset" button.

Working Principle

The conversion from watts to dBm is based on the logarithmic relationship between power levels. The formula used is:

P (dBm) = 10 * log10(P (W) * 1000)

Where:
- P (dBm) is the power level in dBm
- P (W) is the power level in watts
- log10 is the base-10 logarithm

Example

If you enter a power of 0.001 watts (1 milliwatt), the calculator will display the result as 0 dBm. This is because 10 * log10(0.001 * 1000) = 10 * log10(1) = 10 * 0 = 0 dBm.

Applications

This calculator is useful in various fields including:

  • Wireless communication systems (Wi-Fi, cellular networks)
  • RF (radio frequency) engineering and design
  • Satellite communications
  • Antenna gain and signal strength calculations