Statistics
Standard deviation, probability, permutation, linear regression and Z-score.
Statistics Calculator
Mean, median, mode, std deviation & more from a list of numbers.
Permutation & Combination Calculator
Compute nPr and nCr — order matters, or it doesn't.
Probability Calculator
P(A), P(A∪B), P(A∩B) — single and joint event probability.
Linear Regression Calculator
Fit y = mx + b to (x, y) data points — with R² correlation.
Z-Score Calculator
z = (x − μ) / σ — with percentile and tail probability.
Confidence Interval Calculator
Compute confidence intervals for means — 95%, 99% or custom.
Pearson Correlation Calculator
Measure linear correlation between two variables — r from −1 to +1.
Variance & Standard Deviation Calculator
Compute variance and standard deviation — population & sample.
Statistics Calculators
Statistics calculators compute descriptive and inferential statistics from data sets. Calculate mean, median, mode, standard deviation, probability, and more from a list of numbers.
These tools handle the mathematical complexity of statistical formulas, providing accurate results without spreadsheet setup or programming. Paste your data and get instant analysis.
Useful for researchers, students, and data analysts who need quick statistical summaries without specialized software.