Statistics Calculator

Calculate mean, median, range, and population standard deviation from a list.

Statistics Calculator helps you mean, median, range, and population standard deviation from a list of numbers. Enter numbers, review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Statistics calculator does Statistics Calculator is built for arithmetic, algebra, geometry, and number tools. Mean, median, range, and population standard deviation from a list of numbers. You enter numbers, then Simple Calculators computes the result instantly. Results use standard school and engineering formulas that run privately in your browser. How the math works Mean is the arithmetic average. Median is the middle value after sorting. Population standard deviation divides by n. The formula: Standard deviation = √(sum of (x − mean)² ÷ n). x is each number in the list and n is how many numbers there are. The mean is sum ÷ n.