Sum of Squares Calculator

SS Total: Σ(x - x̄)² or Σx² - (Σx)²/n
SS Between (SSB): Σnᵢ(x̄ᵢ - x̄)²
SS Within (SSW): ΣΣ(xᵢⱼ - x̄ᵢ)²
Identity: SS Total = SSB + SSW

Calculate sum of squares (SS) for variance and ANOVA analysis

Enter Data (comma-separated):

Group Labels (optional, for ANOVA):

Sum of Squares (SS) measures the total variation in a dataset. It is fundamental to variance, standard deviation, and ANOVA calculations.

Formulas: