The Standard Deviation Calculator is an easy-to-use statistical tool designed to help students, beginners, and professionals understand how data values are distributed around the average.

By entering a set of numbers, the calculator instantly computes the standard deviation (σ), mean (μ), variance (σ²), and other essential statistics. It also presents the results in a clear and structured layout, making complex statistical concepts easier to understand.

To support learning, the calculator includes:

A summary table that explains basic statistics in simple terms
Step-by-step calculations showing how standard deviation is derived
A frequency table that shows how often each number appears
Confidence ranges (margin of error) to explain how accurate the average is
A final interpretation section that explains what the results mean in plain language

The calculator is especially useful for:

Learning statistics for the first time
School and college math assignments
Probability and data analysis
Understanding data variability and consistency

With a clean split-view layout, colorful icons, dark-bordered cards, and hover-only effects, this calculator offers a professional yet beginner-friendly experience.