Signal-to-Noise Ratio (SNR)

Output: Press calculate

Formula:SNR = 10 * log10(signal / noise)

Introduction to Signal-to-Noise Ratio (SNR) Calculator

The signal-to-noise ratio (SNR) is a measure used in science and engineering to quantify how much a signal has been corrupted by noise. The formula used to calculate SNR is straightforward: dividing the power of a signal by the power of the noise and taking the logarithm (in base 10) of the result, then multiplying by 10. The SNR is expressed in decibels (dB). The SNR is a crucial metric in various fields, including telecommunications, audio engineering, and image processing. This formula is employed to measure the quality of a signal in the presence of noise or interference. The higher the SNR, the better the quality of the signal.

Parameter usage:


Data validation

The signal and noise must be non-zero numbers for the computation.


The SNR calculator provides a simple and effective way to quantify the quality of a signal by comparing the power of the signal to the power of the noise, expressed in decibels (dB).

Tags: Signal Processing, Telecommunications, Noise Reduction