Is there a file size limit?

No practical limit for most operations.

Results are generated using standard algorithms for maximum accuracy.

online

Standard Deviation Calculator — online

Calculate standard deviation and variance of a dataset.

Enter numbers (comma, space, or newline separated)

Type, paste, or upload your content.

Result appears instantly in your browser.

Copy the result or download your file.

Calculate mean, median, mode, and standard deviation.

Calculate basic probability and combinations.

Calculate percentages easily: find X% of Y, percentage change, percentage difference, and more.