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

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.

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

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

Calculate the **Variance** by finding the average of the squared deviations (divide by N or N-1). Find the **Square Root** of the Variance to get the Standard Deviation.

Here are the step-by-step calculations to work out the Standard Deviation (see below for formulas). Enter your numbers below, the answer is calculated live.

Standard deviation calculator with mean value & variance online.

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.

The calculator will show you the standard deviation, variance, mean, count, and the sum of squares, along with a step-by-step solution and a histogram of your data.

Use the standard deviation calculator to compute both sample standard deviation and population standard deviation, complete with a step-by-step solution, and then present the results in APA …