Example 1
Sample Standard Deviation (s): 10; Sample Size (n): 50
Standard Error of the Mean (SEM): 1.414213562
Standard Error Calculator
Statistics0.0(0)
Calculates the standard error, which measures the accuracy with which a sample represents a population. It's commonly used for the standard error of the mean (SEM) and the standard error of the proportion.
More tools:Math & Statistics Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Sample Standard Deviation (s) and Sample Size (n) in the units shown.
Step 2
Read Standard Error of the Mean (SEM) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Example 2
Sample Standard Deviation (s): 15; Sample Size (n): 100
Standard Error of the Mean (SEM): 1.5
Example 3
Sample Standard Deviation (s): 5; Sample Size (n): 25
Standard Error of the Mean (SEM): 1
Explore the topic
Explore More Math & Statistics Calculators
Use calculators for algebra, geometry, trigonometry, probability, statistics, averages, z-scores, tests, and graphing tasks.
People Also Calculate
Related Calculators
Continue with another tool on a related topic.
Statistics
T-Test Calculator
Performs a t-test (one-sample, two-sample, or paired) to compare means and determine statistical significance.
1,322 viewsOpen calculator
Statistics
Inverse Normal Distribution Calculator
Finds the Z-score corresponding to a given cumulative probability (percentile) on a normal distribution.
1,258 viewsOpen calculator
Statistics
Chi-Square Calculator
Calculates the Chi-Square statistic and p-value for goodness-of-fit or test of independence. It requires observed and expected frequencies or values.
1,192 viewsOpen calculator
Statistics
Outlier Calculator
Identifies potential outliers in a dataset using the IQR * 1.5 rule (calculating fences).
1,146 viewsOpen calculator