10 Best Free Online Standard Error Calculator Websites

Check out these best free online standard error calculator websites. Standard Error is a calculation to estimate the error of the mean of a dataset. It is also called the Standard Error of the Mean (SEM). With Standard Error, you can estimate a value or range from a small sample group with a probability that it can be true for a larger group or database. For example, let’s say you want to determine the average height of a population of a city. Instead of measuring every single person in that city, you can take a small sample group. Then you can use the standard error to get an average number. This number might not be accurate but it gives you the probability that the actual average height is in that range.

This post covers 10 free websites that you can use to calculate standard error online. Each website has a dedicated SEM Calculator where you can add your dataset and calculate standard error for it. Many of these calculators also give you the standard deviation and standard variance along with standard error. You can check the overview of these in the table below and read more about each calculator in the post.

My Favorite Online Standard Error Calculator

OmniCalculator.com is my favorite website on this list to calculate standard errors online. It has an SEM calculator that is simple and easy to use for anyone. You can add a database with up to 30 values and get the standard mean. Also, you can also see steps of calculation that give you sample variance as well.

You can also check our other lists of the best free online Unit Circle Calculator Websites, online F-Distribution Calculator Websites, and online k-means Calculator Websites.

Overview Table

Websites	Standard Error	Standard Deviation	Sample Variance
OmniCalculator	✓	x	✓
GoodCalculators	✓	✓	x
EndMemo	✓	✓	✓
AtoZMath	✓	x	x
Calculator-Online	✓	✓	x
MathCracker	✓	x	x
MyMathTables	✓	x	x
MiniWebTool	✓	✓	x
SocSciStatistics	✓	✓	x
Byjus	✓	x	x

OmniCalculator.com

OmniCalculator.com is a popular website with a huge collection of online calculators. It has a free online Standard Error (SEM) Calculator. Initially, this calculator has two slots to add data values. As you add values, additional slots get added for new values. This way, you can add up to 30 data values to this calculator. As soon as you add two or more values, it instantly gives you the standard error for that. Along with that, it offers two options to view the summary and steps of the calculation. The steps include sum, observations, mean, the sum of squares, and sample variance.

How to calculate standard error online on OmniCalculator?

• Open the SEM calculator on OmniCalculator using the link given below.
• Add the data values of your database into the calculator. You can add up to 30 numbers.
• This gets you the standard deviation. You can also expand to view steps and a summary of the calculation.

Highlights:

• This calculator calculates standard errors along with standard variance.
• It works with up to 30 data values.
• You can also view the steps of calculations for standard error.

GoodCalculators.com

GoodCalculators.com has a free online Standard Error Calculator. This calculator has a single input section where you have to add values separated by commas. You can add as many values as you want. Just make sure there is no space between the values. With that, you can calculate the standard error from all those values. Along with standard error, it also shows you the sum, mean, and sample standard deviation. This calculator also plots a line graph visualizing all the added values.

How to calculate standard error online on GoodCalculators?

• Go to this calculator on GoodCalculators using the direct link given below.
• Add the values into the input section, each separated by a comma.
• Then click the Calculate button to get the standard error.

Highlights:

• This calculator calculates standard error and standard deviation.
• It can work with a large dataset of any number of values.
• It also plots a column graph of the values.

EndMemo.com

EndMemo.com offers a minimal standard error calculator that you can use online. You can use this calculator to find the standard mean of any number of values. To do that, you have to add all the values into the box separated by commas. Don’t use a space in between the values, just a comma. After adding the values, you can run the calculator to get the results. The results give you the standard error, standard deviation, mean, median, variance, and total number of values.

How to calculate standard error online on EndMemo?

• Use the direct link given below to open this calculator in your browser.
• Enter the values of the dataset separated by a comma.
• Then click the Calculate button to get the results.

Highlights:

• This calculator calculates standard error, standard deviation, and standard variance.
• It can work with a large dataset of any number of values.

AtoZMath.com

AtoZMath.com is another free website where you can calculate standard errors online. This website has a set of Statistical Methods calculators. You can pick the Standard Error method and use that calculator to get the standard error of a dataset. When you add the values, it organizes the values in a tabular format. After that, you can run the calculator to get the solution. This calculator is a little slow so give it some time to get the solution. The results give you the standard error and variance along with a step-wise solution.

How to calculate standard error online on AtoZMath?

• Follow the link given below to access this calculator directly in your browser.
• Click on the Method dropdown and pick the Standard Error option.
• Then, add the values of your dataset into the box separately by commas.
• After that, click the Find button to get the results.

Highlights:

• This calculator calculates standard error and variance.
• It also shows the steps of calculations.
• You can use it with a dataset of any number of values.

Calculator-Online.net

Calculator-Online.net has a free online standard error calculator. This calculator offers two methods to calculate the standard error. These methods are for the input. Either you can pick the “Raw Data” method to add data values directly. Or, you can go with the “Summary Data” method and provide the standard deviation instead. With that, you can run the calculator and get the standard error along with the sum and mean. The calculation also includes the step-by-step solution.

How to calculate standard error online on Calculator-Online?

• Use the link given below to access this calculator directly with a click.
• Pick the calculation method at the top as per your input data.
• Then, add the values or standard deviation as per the method selected.
• After that, click the Calculate button to get the results.

Highlights:

• This calculator calculates standard error and standard deviation.
• It has two calculation options; from raw data and from summary data.
• It gives you a step-by-step solution to the problem.
• You can use this calculator for a dataset of any number of values.

MathCracker.com

MathCracker.com has a free online standard error calculator. Unlike other calculators, it does not take the raw data. Instead, it calculates standard error from standard deviation. All you have to do is enter the standard deviation along with the sample size. With that, the calculator gives you the standard error. With a premium membership, you can also get a step-by-step solution to the problem.

How to calculate standard error online on MathCracker?

• Open this calculator in your browser using the direct link given below.
• Enter the standard deviation along with the sample size into the calculator.
• Then click the Calculate button to get the standard error.

Highlights:

• This calculator calculates standard error from standard deviation.
• It also offers a step-by-step solution for subscribed users.

MyMathTables.com

MyMathTables.com has an online calculator for Statistical Standard Error calculation. This is a simple calculator where you can add the raw data. You can pick the delimiter of choice for the data input. Then you can add the values and run the calculator. The output gives you the mean and standard error along with the formula.

How to calculate standard error online on MyMathTables?

• Open this calculator in your browser using the direct link given below.
• Pick the delimiter of choice and add the data values into the calculator.
• After that, click the Calculate button to get the result.

Highlights:

• This calculator calculates standard error only.
• It can work with any number of data values.

MiniWebTool.com

MiniWebTool.com has a free online Standard Error Calculator. The calculator has a big box to add the data values. You can add as many data values as you want, separated by commas. The results give you the standard error and standard deviation. From there, you get options to download the result as a PDF file and a JPG image. It shows a preview which you can then download.

How to calculate standard error online on MiniWebTool?

• Open this calculator on MiniWebTool using the link provided below.
• Add the data values of your database into the calculator separated by commas.
• Then click the Calculate Standard Error of the Mean button to get the result.

Highlights:

• This calculator calculates standard errors along with standard deviation.
• You can use it with any number of values.
• Options to download results as PDF and a JPG image.

SocSciStatistics.com

SocSciStatistics.com provides a simple online standard error calculator. This is a minimalistic calculator where you get an input box to add the data values. You can add your values separated by commas. In the output, it generates two more boxes containing the deviation and squared deviation of the values. Below that, you get the standard error with the formula and calculation steps.

How to calculate standard error online on SocSciStatistics?

• Open this calculator using the link provided below.
• Add the data values into the calculator separated by commas.
• Then click the Calculate button to get the result.

Highlights:

• This calculator calculates standard error.
• It also calculates the deviation and squared deviation of the values.
• You can use it with any number of values.

Byjus.com

Byjus.com is an online e-learning platform that also offers an online standard error calculator. This is a simple calculator where you get a small input section to add your values. The box is very small to add the values. Instead, you can type your values separated by commas somewhere else and then paste that into this calculator. The result gives you the standard error along with the number of inputs.

How to calculate standard error online on Byjus?

• Use the direct link given below to open this calculator in your browser.
• Paste/Add the values of the dataset separated by a comma.
• Then click the Calculate button to get the result.

Highlights:

• This calculator calculates standard error only.
• It can work with a dataset of any number of values.