Calculator Tools • Free Online Tool

Standard Deviation Calculator

Calculate the sample and population standard deviation, variance, and mean for a set of numbers.

Free to Use No Sign-Up Browser-Based
Online Tool

Standard Deviation Calculator

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The Standard Deviation Calculator is a professional statistical tool designed for data analysis and research. It allows you to input a dataset and instantly calculate key statistical metrics, including the mean, variance, and standard deviation for both population and sample data. Perfect for students, researchers, and analysts, this tool provides a clear breakdown of the step-by-step calculations, including the sum of squares and dataset count. All calculations are performed securely in your browser to ensure data privacy.
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