📊 Statistics
Free statistics calculators and tools.
Z-Score Calculator
Calculate the z-score for any data point. Enter the value, mean, and standard deviation. Get the z-s
Percentile Calculator
Calculate any percentile from a dataset. Enter your numbers and target percentile. Get the result in
Chi-Square Test
Calculate chi-square statistic, degrees of freedom, and p-value. Enter observed and expected values
Correlation Coefficient
Calculate the Pearson correlation coefficient (r) and R-squared. Enter X and Y data to measure the s
Linear Regression
Calculate the line of best fit with slope, intercept, R-squared, and equation. Enter X and Y values