Statistics & Data Calculators
Analyze data, understand probability, and perform statistical calculations with confidence. From basic mean and median to advanced hypothesis testing, our calculators help you make sense of numbers and draw meaningful conclusions.
21 calculators available
Absolute Deviation Calculator
Calculate mean or median absolute deviation to measure data spread
Bell Curve Grade Calculator
Convert raw exam scores to curved grades with z-scores and percentiles.
Binomial Distribution Calculator
Calculate binomial probabilities, expected value, and variance for discrete trials.
Box Plot Calculator
Build a box-and-whisker plot summary with quartiles, fences, and outliers.
Central Limit Theorem Calculator
Compute z-scores and confidence intervals using the central limit theorem.
Chebyshev's Theorem Calculator
Estimate guaranteed coverage using Chebyshev’s theorem for any distribution.
Class Rank Calculator
Calculate your class rank and percentile to understand your academic standing
Coefficient of Determination Calculator
Calculate R² to measure regression model fit and variance explained
Coefficient of Variation Calculator
Calculate CV to measure relative variability and compare data dispersion
Covariance Calculator
Calculate covariance and correlation to analyze relationships between variables
Degree of Freedom Calculator
Calculate degrees of freedom for statistical tests
5 Number Summary Calculator
Calculate the five-number summary of your dataset including quartiles
Frequency and Relative Frequency Calculator
Calculate frequency and relative frequency distributions
Geometric Distribution Calculator
Calculate geometric distribution probabilities and statistics
Grade Curve Calculator
Calculate curved grades using different curve methods
Hypothesis Testing Calculator
Perform hypothesis testing with Z-test and t-test
Inverse Normal Distribution Calculator
Find the x-value for a given probability in a normal distribution
Mean Absolute Deviation Calculator
Calculate the mean absolute deviation of your dataset
Mean Deviation Calculator
Calculate the mean deviation of your dataset
Median Calculator
Calculate the median and quartiles of your dataset
Median Speed Calculator
Calculate the median speed from distance and time measurements