Standard Deviation Calculator - Free, Instant, In Your Browser
Enter numbers separated by commas or spaces to calculate their standard deviation.
How to use Standard Deviation Calculator
- 1Paste your text or data into the input box above.
- 2Standard Deviation Calculator runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
The square root of the average squared difference from the mean.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.