Signal to noise ratio calculator is used to calculate the ratio of signal and noise. It is an online statistical tool for this particular operation. It is denoted by SNR. The equation of signal to noise ratio is given below.

SNR=$\frac{p_{signal}}{p_{noise}}$=$\frac{\mu }{\sigma }$

Where SNR is the signal to noise ratio
          $p_{signal}$ is the signal power
          $p_{noise}$ is the background noise
          $\mu$ is the mean
          $\sigma$ is the standard deviation
The steps for signal to noise ratio is given below.

Step1: Note down the given observations.

Step2: Find out the mean of the given data.
$\mu$ =$\frac{x_{1}+x_{2}+.......+x_{n}}{n}$

Step3: Calculate the standard deviation using the formula,
S=$\sqrt{\frac{1}{n-1}\sum_{i=1}^{n}(x_{i}-\mu )^{2}}$

Step4: Substitute the given values in the SNR equation and calculate the ratio.
SNR = $\frac{\mu}{\sigma}$