Standard deviation

Calculate mean, variance, and standard deviation for a numeric dataset.

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Overview

Standard deviation measures how spread out values are around the mean. Higher deviation means higher variability.

This tool computes mean, population variance, and standard deviation automatically.

Example

Valores: 10, 12, 23, 23, 16, 23, 21, 16

FAQ

What is this tool for?

It runs fully in your browser: useful to validate, format, or convert data in everyday development.

Are my inputs sent to a server?

Processing happens locally with JavaScript. We do not store what you paste into the text areas.

Can I use this for real production data?

Use at your own risk. For secrets (passwords, tokens), prefer controlled environments and your company policies. And always review the generated contents. Never trust blindly things you see on the internet.