Standard Deviation & Variance Calculator

Data Set
Sample Population
Standard Deviation σ = {{result.table.standardDeviationSample}} s = {{result.table.standardDeviationPopulation}}
Variance σ2 = {{result.table.varianceSample}} s2 = {{result.table.variancePopulation}}
Count n = {{result.table.countSample}} n = {{result.table.countPopulation}}
Mean μ = {{result.table.meanSample}} x̄ = {{result.table.meanPopulation}}
Sum of Squares SS = {{result.table.sumSample}} SS = {{result.table.sumPopulation}}

The Standard Deviation & Variance Calculator calculates the mean, variance, and standard deviation of a sample or a population based on the discrete data set you provide, and shows all the intermediate steps of calculations.

Featured Tools

Featured tools that you might find useful.

Popular Tools

List of popular tools that users love and frequently use.

New Tools

The latest tools added to our collection, designed for you.

Topics

The tools grouped by topics to quickly find what you need.
Area Calculator supports area calculations for common geometric figures such as Circular, Sector, Ring, Ellipse, Triangle, Square, Rectangle, Parallelogram and Trapezoid.

Area Calculator

Area Calculator supports area calculations for common geometric figures such as Circular, Sector, Ring, Ellipse, Triangle, Square, Rectangle, Parallelogram and Trapezoid.
Surface Area Calculator supports surface area calculations for common geometric figures such as Sphere, Spherical Sector, Segment, Cylinder, Hollow Cylinder(Pipe), Oblique Straight Cylinder, Cone, Circular Truncated Cone, Ellipsoid, Triangle Prism, Pyramid, Cube, Cuboid, Torus and Sphere Belt.

Surface Area Calculator

Surface Area Calculator supports surface area calculations for common geometric figures such as Sphere, Spherical Sector, Segment, Cylinder, Hollow Cylinder(Pipe), Oblique Straight Cylinder, Cone, Circular Truncated Cone, Ellipsoid, Triangle Prism, Pyramid, Cube, Cuboid, Torus and Sphere Belt.
Volume Calculator supports volume calculations for common geometric figures such as Sphere, Spherical Sector, Segment, Cylinder, Hollow Cylinder(Pipe), Oblique Straight Cylinder, Cone, Circular Truncated Cone, Ellipsoid, Triangle Prism, Pyramid, Cube, Cuboid, Torus and Sphere Belt.

Volume Calculator

Volume Calculator supports volume calculations for common geometric figures such as Sphere, Spherical Sector, Segment, Cylinder, Hollow Cylinder(Pipe), Oblique Straight Cylinder, Cone, Circular Truncated Cone, Ellipsoid, Triangle Prism, Pyramid, Cube, Cuboid, Torus and Sphere Belt.
Random Number Generator is a free online tool that can create one or more random numbers within a specified range or distribution.

Random Number Generator

Random Number Generator is a free online tool that can create one or more random numbers within a specified range or distribution.