KLOORAStandard Deviation Calculator
Paste numbers and get the standard deviation and variance for a sample or a population.
Quick answer: Standard Deviation Calculator: Paste numbers and get the standard deviation and variance for a sample or a population. Everything runs in your browser, so nothing you enter is uploaded or stored.
How to use Standard Deviation Calculator
- Enter your values in the fields.
- The results update instantly as you type.
- Note or copy the numbers you need.
Features
- Instant results
- Free, no signup
- Runs in your browser, nothing is uploaded
- Works on phone and desktop
Frequently asked questions
Sample or population?
Use population when you have every value. Use sample when the numbers are a part of a bigger group.
What is the formula?
Standard deviation is the square root of the average squared distance from the mean (divide by n - 1 for a sample).
Is the Standard Deviation Calculator free?
Yes. It is free, needs no signup and works on any device.