Signal to Noise Ratio Calculator

Signal to Noise Ratio (SNR) Calculator helps you calculate the ratio of signal power to noise power, which is crucial in assessing the quality of a signal in various fields such as audio engineering, telecommunications, and image processing.

Input Parameters

Calculation Results

Calculation Formula

SNR = 10 * log10(Ps / Pn)

Where:
Ps = Signal Power
Pn = Noise Power
SNR = Signal to Noise Ratio in decibels (dB)

Signal to Noise Ratio Calculator Calculator Usage Guide

Learn how to use the Signal to Noise Ratio Calculator calculator and its working principles

What is Signal to Noise Ratio (SNR)?

Signal to Noise Ratio (SNR) is a measure used in science and engineering to compare the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to noise power, often expressed in decibels (dB).

How to Use the Calculator

  1. Enter the Signal Power (Ps) in watts.
  2. Enter the Noise Power (Pn) in watts.
  3. Click the "Calculate" button to compute the SNR.
  4. The result will be displayed in decibels (dB).

Practical Applications

SNR is a critical parameter in various fields:

  • Audio Engineering: High SNR ensures better audio quality with less noise.
  • Telecommunications: Used to assess the quality of transmission signals.
  • Image Processing: Helps in determining the clarity and quality of images.

Example

If the signal power is 100 watts and the noise power is 10 watts, the SNR would be:

SNR = 10 * log10(100 / 10) = 10 * log10(10) = 10 * 1 = 10 dB