Standard Deviation Calculator

Standard deviation (σ) calculator with mean value & variance online.

Population and sampled standard deviation calculator

Enter data values delimited with commas (e.g: 3,2,9,4) or spaces (e.g: 3 2 9 4) and press the Calculate button.

Discrete random variable standard deviation calculator

Enter probability or weight and data number in each row:

Data number Probability

Whole population standard deviation calculation

Population mean:

population mean

Population standard deviation:

population standard deviation

Sampled data standard deviation calculation

Sample mean:

Sample mean

Sample standard deviation:

Sample standard deviation

Discrete random variable standard deviation calculation

Random variable mean:

random variable mean

Discrete random variable standard deviation:

random standard deviation


See also

Features of Standard Deviation Calculator

Our Standard Deviation Calculator allows the users to Calculate Standard Deviation. Some of the prominent features of this utility are explained below.

No Registration

You don’t need to go through any registration process to use the Standard Deviation Calculator. Using this utility, users to Calculate Standard Deviation as many times as you want for free.

Fast conversion

This Standard Deviation Calculator offers users the fastest Calculate. Once the user enters the  Standard Deviation values ​​in the input field and clicks the Calculate button, the utility will start the conversion process and return the results immediately.

Saves Time and Effort

The manual procedure of Calculator Standard Deviation isn’t an easy task. You must spend a lot of time and effort to complete this task. The Standard Deviation Calculator allows you to complete the same task immediately. You will not be asked to follow manual procedures, as its automated algorithms will do the work for you.


Despite investing time and effort in manual Calculation, you might not be able to get your hands on accurate results. Not everyone is good at solving math problems, even if you think you're a pro, there's still a good chance you'll get in accurate results. This situation can be smartly handled with the help of a Standard Deviation Calculator. You will be provided with 100% accurate results by this online tool.


The online Standard Deviation converter perfectly works on all operating systems. Whether you have a Mac, iOS, Android, Windows, or Linux device, you can easily use this online Tool without facing any hassle.

100% Free

You don't need to go through any registration process to use this Standard Deviation Calculator. You can use this utility for free and do unlimited Standard Deviation Calculate without any limitations.


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