FREE ONLINE TOOL

Free Variance
Calculator

Calculate exact population or sample variance, sum of squares, combine groups with within/between variance decomposition, or see how scaling and shifting change variance.

About Free Variance Calculator

Calculate variance from raw data, frequencies or sufficient summary statistics, combine group variances correctly, or see exactly how linear transformations change variance.

Workspace options

  • Target type

Available actions

  • Raw data
  • Frequency data
  • Summary stats
  • Combine groups
  • Transform variance
  • Calculate variance