This free standard deviation calculator computes the standard deviation, variance, mean, sum, and error margin of a given data set.

Nov 4, 2025 · Calculates standard deviation and variance for a data set. Calculator finds standard deviation, the measure of data dispersion, and shows the work for the calculation.

You can use this Standard Deviation Calculator to calculate the standard deviation, variance, mean, and the coefficient of variance for a given set of numbers

Paste your numbers, choose sample or population, and get standard deviation plus 12 more statistics — with a bell curve, confidence intervals, and step-by-step solution.

Standard deviation calculator with mean value & variance online.

Calculate standard deviation, mean, and variance online for your data set. Our free web-based calculator supports both sample and population calculations, providing instant statistical results …

Use the Standard Deviation Calculator to quickly find mean, variance, and standard deviation for your data set. Fast, and accurate.

Use our standard deviation calculator to find the SD for a data set. Plus, learn the standard deviation formula and see each step to find it.

Apr 7, 2026 · Use this free standard deviation calculator to quickly compute both population (σ) and sample (s) standard deviation. Accurate results with a step-by-step solution.

Mar 15, 2026 · Calculate sample or population standard deviation from a list of numbers, with cleaned values, mean, variance, and step summary.