Standard Deviation Calculator

Calculate Key Statistical Metrics in Seconds

The Standard Deviation Calculator is a powerful yet easy-to-use tool designed to compute essential statistical measures from a given dataset. Simply input your numbers (separated by commas), choose whether your data represents a population or a sample, and instantly get accurate results for:

✔ Standard Deviation (σ or s) – Measures how spread out the numbers are.
✔ Variance (σ² or s²) – The average of squared differences from the mean.
✔ Mean (μ) – The average value of the dataset.
✔ Sum (Σx) – The total of all numbers combined.
✔ Count (N) – The number of data points entered.

Why Use This Calculator?

🔹 Fast & Accurate – No manual calculations needed; get results in a click.
🔹 Clear & Detailed – See all key metrics in an organized layout.
🔹 Flexible Input – Works for both population and sample data.
🔹 User-Friendly – Clean design with a beautiful gradient background.

Perfect for students, researchers, analysts, and anyone working with data!

📊 Try it now—just enter your numbers and click “Calculate”!