Statistics Kingdom

Fit Test Calculators

Check whether your data follows a normal distribution or a hypothesized distribution — goodness-of-fit, normality tests and survival analysis.

6 free calculators Step-by-step results No signup

Fit & normality tests 6 tools

Goodness of Fit χ² test Shapiro-Wilk normality test Kolmogorov-Smirnov one sample vs. distribution Two Sample KS compare two samples D'Agostino-Pearson normality test Survival Analysis Kaplan-Meier
Which fit test should I use?
  • Categorical data → Goodness of fit
  • Small sample, general → Shapiro-Wilk
  • Compare to a known distribution → Kolmogorov-Smirnov
  • Time-to-event data → Kaplan-Meier
Calculators
Average Geometric mean Standard deviation Mean Median Mode IQR P-value Distribution Probability calculator Combinations calculator