Calculate standard deviation, variance, mean and standard error for sample or population data.
What is the Standard Deviation Calculator?
Standard deviation shows how spread out numbers are from the average. Paste your data to get the standard deviation, variance, mean, sum of squares, standard error and coefficient of variation for a sample or a whole population.
How to use the Standard Deviation Calculator
- Paste your numbers.
- Choose sample or population.
- Read the results.
Frequently asked questions
Sample or population?
Use sample (n−1) when your data is part of a bigger group, and population (n) when you have every value.
This standard deviation calculator is 100% free, needs no signup and runs in your browser, so your data stays private.
Last updated: · By NodifyTech