Free Online Statistics Calculators
Statistics is the language data speaks — and our calculators help you understand every word. Whether you're running a hypothesis test, fitting a regression model, calculating a confidence interval, or just trying to figure out what a p-value actually means — we've built tools for all of it. Need to compute descriptive statistics for a dataset? Run an ANOVA or chi-square test? Find the critical value for a t-test? Simulate a binomial or normal distribution? Every major statistical concept has a calculator here — from the fundamentals like mean, median, and standard deviation to advanced methods like Bayesian inference, survival analysis, and time series decomposition. Whether you're a student working through your first stats course, a researcher analysing survey data, or a data professional validating a model — these tools give you accurate results without the textbook gymnastics. Just plug in your numbers, pick your test, and let the math do the heavy lifting.
ANOVA Calculators
12 tools- ANCOVA Calculator
- ANOVA Calculator (General)
- Bonferroni Correction Calculator
- Eta Squared Calculator
- MANOVA Calculator
- Mixed Model ANOVA Calculator
- Omega Squared Calculator
- One-Way ANOVA Calculator
- Three-Way ANOVA Calculator
- Tukey HSD Post-Hoc Test Calculator
- Two-Way ANOVA Calculator
- Two-Way Repeated Measures ANOVA Calculator
Bayesian Statistics Calculators
5 toolsBetting & Odds Calculators
7 toolsCentral Tendency Calculators
8 toolsCombinatorics Calculators
9 toolsConfidence Intervals Calculators
10 tools- 90% Confidence Interval Calculator
- 95% Confidence Interval Calculator
- 99% Confidence Interval Calculator
- Confidence Interval for Difference of Means Calculator
- Confidence Interval for Mean Calculator
- Confidence Interval for Proportion Calculator
- Confidence Interval for Variance Calculator
- Point Estimate Calculator
- Sampling Error Calculator
- Wilson Score Interval Calculator
Continuous Distributions Calculators
19 tools- Beta Distribution Calculator
- Cauchy Distribution Calculator
- Chi-Square Distribution Calculator
- Cumulative Distribution Function Calculator
- F-Distribution Calculator
- Gamma Distribution Calculator
- Gumbel Distribution Calculator
- Inverse Normal Distribution Calculator
- Logistic Distribution Calculator
- Lognormal Distribution Calculator
- Normal Distribution Calculator
- Pareto Distribution Calculator
- Probability Density Function Calculator
- Rayleigh Distribution Calculator
- SMp(x) Distribution Calculator
- Standard Normal Distribution Calculator
- Triangular Distribution Calculator
- Weibull Distribution Calculator
- t-Distribution Calculator
Correlation Calculators
12 tools- Autocorrelation Calculator
- Covariance Calculator
- Cramér's V Calculator
- Cross-Correlation Calculator
- Intraclass Correlation Calculator
- Matthews Correlation Coefficient Calculator
- Partial Correlation Calculator
- Pearson Correlation Calculator
- Phi Coefficient Calculator
- Point Biserial Correlation Calculator
- Spearman's Correlation Calculator
- Tetrachoric Correlation Calculator
Data Visualization Calculators
9 toolsDiagnostic Statistics Calculators
17 tools- AUC Calculator (Area Under Curve)
- Accuracy Calculator
- Confusion Matrix Calculator
- False Positive Calculator
- False Positive Paradox Calculator
- Kappa Statistic Calculator
- Likelihood Ratio Calculator
- Negative Predictive Value Calculator
- Number Needed to Treat Calculator
- Positive Predictive Value Calculator
- Post-Test Probability Calculator
- ROC Curve Calculator
- Relative Risk Reduction Calculator
- Sensitivity Calculator
- Sensitivity and Specificity Calculator
- Specificity Calculator
- Youden Index Calculator
Discrete Distributions Calculators
6 toolsDispersion & Variability Calculators
10 tools- Dispersion Calculator
- IQR Calculator (Interquartile Range)
- MSE Calculator (Mean Squared Error)
- Pooled Standard Deviation Calculator
- Population Variance Calculator
- RMSE Calculator (Root Mean Square Error)
- RSE Calculator (Relative Standard Error)
- Relative Standard Deviation Calculator
- Standard Deviation of Sample Mean Calculator
- Sum of Squares Calculator
Diversity & Information Calculators
5 toolsError & Uncertainty Calculators
6 toolsHypothesis Testing Calculators
16 tools- Anderson-Darling Test Calculator
- Binomial Test Calculator
- Chi-Square Goodness of Fit Calculator
- Chi-Square Test of Independence Calculator
- Critical Value Calculator
- F-Statistic Calculator
- Fisher's Exact Test Calculator
- Hypothesis Testing Calculator
- Kolmogorov-Smirnov Test Calculator
- Lilliefors Test Calculator
- McNemar's Test Calculator
- Runs Test Calculator
- Sign Test Calculator
- Type I and Type II Error Calculator
- Z-Test Calculator
- t-Statistic Calculator
Multivariate & Advanced Calculators
17 tools- Bootstrap Calculator
- Canonical Correlation Calculator
- Cluster Analysis Calculator
- Cohen's Kappa Calculator
- Cox Proportional Hazards Calculator
- Cronbach's Alpha Calculator
- Discriminant Analysis Calculator
- Factor Analysis Calculator
- Funnel Plot Calculator
- Hotelling's T² Test Calculator
- Jackknife Calculator
- Log-Rank Test Calculator
- Meta-Analysis Calculator
- Monte Carlo Simulation Calculator
- Principal Component Analysis Calculator
- Structural Equation Modeling Calculator
- Survival Analysis Calculator
Non-Parametric Tests Calculators
7 toolsProbability Games & Paradoxes Calculators
12 tools- Bertrand's Box Paradox Calculator
- Bertrand's Paradox Calculator
- Boy or Girl Paradox Calculator
- Coin Toss Streak Calculator
- Dice Average Calculator
- False Positive Paradox (Medical)
- Lottery Calculator
- Monty Hall Problem Calculator
- Parrondo's Paradox Calculator
- Roulette Payout Calculator
- Two Dice Probability Calculator
- Two Envelopes Paradox Calculator
Quality Control Calculators
7 toolsRegression Calculators
21 tools- Adjusted R-Squared Calculator
- Coefficient of Determination Calculator (R²)
- Cubic Regression Calculator
- Exponential Regression Calculator
- Extrapolation Calculator
- Interpolation Calculator
- Lasso Regression Calculator
- Linear Regression Calculator
- Logarithmic Regression Calculator
- Logistic Regression Calculator
- Mediation Analysis Calculator
- Moderation Analysis Calculator
- Multiple Linear Regression Calculator
- Power Regression Calculator
- Prediction Interval Calculator
- Quadratic Regression Calculator
- Quartic Regression Calculator
- Residual Calculator
- Ridge Regression Calculator
- Slope and Intercept Calculator
- Trend Line Calculator
Sample Size & Power Calculators
6 toolsSampling Calculators
9 tools- Cluster Sampling Calculator
- Continuity Correction Calculator
- Finite Population Correction Calculator
- Normal Approximation Calculator
- Normal Probability for Sampling Calculator
- Sampling Distribution Calculator
- Sampling Distribution of Proportion Calculator
- Stratified Sampling Calculator
- Systematic Sampling Calculator