Statistics Calculators

Accuracy CalculatorPopular

Calculate statistical accuracy and precision metrics

ANOVA CalculatorPopular

Perform analysis of variance statistical tests

Bayes' Theorem CalculatorPopular

Calculate conditional probability using Bayes' theorem

Birthday Paradox CalculatorPopular

Calculate probability of shared birthdays in groups

Coin Flip Probability CalculatorPopular

Calculate probabilities for coin flip sequences

Coin FlipperPopular

Flip virtual coins and track results

Combination CalculatorPopular

Calculate combinations (nCr) for probability problems

Conditional Probability CalculatorPopular

Calculate conditional probability P(A|B)

Dice Probability CalculatorPopular

Calculate probabilities for dice roll outcomes

Dice Roller CalculatorPopular

Roll virtual dice and analyze results

Expected Value CalculatorPopular

Calculate expected value for probability distributions

Lottery CalculatorPopular

Calculate lottery winning probabilities and odds

Monty Hall Problem CalculatorPopular

Explore the famous Monty Hall probability paradox

Odds CalculatorPopular

Convert between different odds formats and probabilities

Permutation CalculatorPopular

Calculate permutations (nPr) for arrangements

Probability CalculatorPopular

Calculate general probability for various scenarios

Random Number GeneratorPopular

Generate random numbers with various distributions

Bertrand's Box Paradox

Explore the classic Bertrand's box probability paradox

Bertrand's Paradox

Analyze the geometric probability paradox

Boy or Girl Paradox

Explore conditional probability with gender scenarios

Chebyshev's Theorem Calculator

Calculate probability bounds using Chebyshev's theorem

Coin Toss Streak Calculator

Calculate probability of coin toss streaks

Confusion Matrix Calculator

Calculate performance metrics from confusion matrix

Dice Average Calculator

Calculate average outcomes for dice rolls

False Positive Paradox Calculator

Explore false positive rates in statistical testing

Implied Probability Calculator

Convert betting odds to implied probabilities

P-Hat Calculator

Calculate sample proportion (p-hat) statistics

Parrondo's Paradox Calculator

Explore the counterintuitive Parrondo's paradox

Password Combination Calculator

Calculate password complexity and combinations

Post-Test Probability Calculator

Calculate post-test probability in diagnostic testing

Probability of 3 Events Calculator

Calculate probability of three independent events

Relative Risk Calculator

Calculate relative risk for epidemiological studies

Risk Calculator

Calculate various types of statistical risk measures

Roulette Payout Calculator

Calculate roulette odds and expected payouts

Sensitivity and Specificity Calculator

Calculate diagnostic test performance metrics

Two Envelopes Paradox Calculator

Explore the two envelopes probability paradox

🔔Distributions and Plots Calculators33 tools

Benford's Law CalculatorPopular

Analyze digit distribution using Benford's law

Binomial Distribution CalculatorPopular

Calculate binomial distribution probabilities

Box Plot CalculatorPopular

Generate box plots and five-number summaries

Central Limit Theorem CalculatorPopular

Demonstrate central limit theorem principles

Chi-Square CalculatorPopular

Perform chi-square tests and calculate probabilities

Confidence Interval CalculatorPopular

Calculate confidence intervals for means and proportions

Empirical Rule CalculatorPopular

Apply the 68-95-99.7 rule for normal distributions

Frequency Distribution CalculatorPopular

Create frequency distribution tables

Histogram CalculatorPopular

Create histograms and analyze data distributions

Normal Distribution CalculatorPopular

Calculate normal distribution probabilities and z-scores

Pie Chart CalculatorPopular

Create pie charts and calculate percentages

Poisson Distribution CalculatorPopular

Calculate Poisson distribution probabilities

Beta Distribution Calculator

Calculate beta distribution probabilities and statistics

Class Width Calculator

Calculate optimal class width for histograms

Continuity Correction Calculator

Apply continuity correction for discrete distributions

Dot Plot Calculator

Create dot plots for data visualization

Exponential Distribution Calculator

Calculate exponential distribution probabilities

Exponential Growth Prediction Calculator

Predict exponential growth patterns

Frequency Polygon Calculator

Generate frequency polygons from data

Geometric Distribution Calculator

Calculate geometric distribution probabilities

Hypergeometric Distribution Calculator

Calculate hypergeometric distribution probabilities

Inverse Normal Distribution Calculator

Find z-scores and percentiles for normal distributions

Lognormal Distribution Calculator

Calculate lognormal distribution probabilities

Negative Binomial Distribution Calculator

Calculate negative binomial distribution probabilities

Normal Probability Calculator for Sampling Distributions

Calculate probabilities for sampling distributions

Rayleigh Distribution Calculator

Calculate Rayleigh distribution probabilities

Relative Frequency Calculator

Calculate relative frequencies and percentages

Sampling Distribution of the Sample Proportion Calculator

Analyze sampling distributions of proportions

SMp(x) Distribution Calculator

Calculate SMp(x) distribution probabilities

Stem and Leaf Plot Calculator

Create stem-and-leaf plots for data analysis

Uniform Distribution Calculator

Calculate uniform distribution probabilities

Upper Control Limit Calculator

Calculate control limits for quality control

Weibull Distribution Calculator

Calculate Weibull distribution probabilities

📊Descriptive Statistics Calculators46 tools

5 Number Summary CalculatorPopular

Calculate five number summary (min, Q1, median, Q3, max)

Coefficient of Variation CalculatorPopular

Calculate coefficient of variation for data sets

Correlation Coefficient CalculatorPopular

Calculate Pearson correlation coefficient

Covariance CalculatorPopular

Calculate covariance between two variables

Descriptive Statistics CalculatorPopular

Calculate comprehensive descriptive statistics

IQR Calculator - Interquartile RangePopular

Calculate interquartile range and quartiles

Mean Absolute Deviation CalculatorPopular

Calculate mean absolute deviation from mean

Mean Median Mode CalculatorPopular

Calculate mean, median, and mode for data sets

Median CalculatorPopular

Calculate median value for data sets

Mode CalculatorPopular

Calculate mode (most frequent value) in data

Outlier CalculatorPopular

Identify outliers using IQR and other methods

Pearson Correlation CalculatorPopular

Calculate Pearson product-moment correlation

Percentile CalculatorPopular

Calculate percentiles for data distributions

Quartile CalculatorPopular

Calculate quartiles (Q1, Q2, Q3) for data

Range CalculatorPopular

Calculate range (max - min) of data values

Skewness CalculatorPopular

Calculate skewness of data distribution

Standard Deviation CalculatorPopular

Calculate sample and population standard deviation

Standard Error CalculatorPopular

Calculate standard error of the mean

Variance CalculatorPopular

Calculate sample and population variance

Average Rating Calculator

Calculate average ratings and weighted scores

Cohen's D Calculator

Calculate Cohen's d effect size measure

Constant of Proportionality Calculator

Calculate constant of proportionality for relationships

Correlation Coefficient Calculator (Matthews)

Calculate Matthews correlation coefficient

Decile Calculator

Calculate deciles for data distribution

Dispersion Calculator

Calculate measures of dispersion and spread

Error Propagation Calculator

Calculate error propagation in measurements

Grouped Data Standard Deviation Calculator

Calculate standard deviation for grouped data

Index of Qualitative Variation Calculator

Calculate IQV for categorical data diversity

Least to Greatest Calculator

Sort data from least to greatest values

Median Absolute Deviation Calculator

Calculate median absolute deviation (MAD)

Midrange Calculator

Calculate midrange of data distribution

Minimum and Maximum Calculator

Find minimum and maximum values in data

MSE Calculator — Mean Squared Error

Calculate mean squared error for predictions

Percentile Rank Calculator

Calculate percentile rank for specific values

Pooled Standard Deviation Calculator

Calculate pooled standard deviation for groups

Population Variance Calculator

Calculate population variance and standard deviation

Process Capability Index Calculator

Calculate process capability indices (Cp, Cpk)

Relative Standard Deviation Calculator

Calculate relative standard deviation (RSD)

RSE Calculator — Relative Standard Error

Calculate relative standard error for estimates

Simpson's Diversity Index Calculator

Calculate Simpson's diversity index for populations

Spearman's Correlation Calculator

Calculate Spearman's rank correlation coefficient

Standard Deviation Index Calculator

Calculate standardized deviation indices

Standard Deviation of Sample Mean Calculator

Calculate standard deviation of sample means

Sum of Squares Calculator

Calculate sum of squares for data analysis

Upper and Lower Fence Calculator

Calculate upper and lower fences for outlier detection

Venn Diagram Calculator

Calculate probabilities using Venn diagrams

📉Inference, Regression, and Statistical Tests Calculators30 tools

AB Test CalculatorPopular

Calculate statistical significance for A/B tests

Coefficient of Determination Calculator (R-squared)Popular

Calculate R-squared for regression analysis

Critical Value CalculatorPopular

Calculate critical values for statistical tests

Degrees of Freedom CalculatorPopular

Calculate degrees of freedom for statistical tests

F-statistic CalculatorPopular

Calculate F-statistic for ANOVA and regression

Hypothesis Testing CalculatorPopular

Perform comprehensive hypothesis testing

Linear Regression CalculatorPopular

Perform linear regression analysis and predictions

Margin of Error CalculatorPopular

Calculate margin of error for surveys and polls

p-value CalculatorPopular

Calculate p-values for statistical tests

t-statistic CalculatorPopular

Calculate t-statistic for hypothesis testing

t-test CalculatorPopular

Perform one-sample, two-sample, and paired t-tests

Z-score CalculatorPopular

Calculate z-scores and standardized values

Z-test CalculatorPopular

Perform z-tests for population means and proportions

Absolute Uncertainty Calculator

Calculate absolute uncertainty in measurements

Bonferroni Correction Calculator

Apply Bonferroni correction for multiple comparisons

Cubic Regression Calculator

Perform cubic regression analysis

Exponential Regression Calculator

Perform exponential regression analysis

Fisher's Exact Test Calculator

Perform Fisher's exact test for categorical data

Mann-Whitney U Test Calculator

Perform Mann-Whitney U test for non-parametric data

McNemar's Test Calculator

Perform McNemar's test for paired categorical data

Normal Approximation Calculator

Apply normal approximation to binomial distribution

Point Estimate Calculator

Calculate point estimates for population parameters

Polynomial Regression Calculator

Perform polynomial regression analysis

Quadratic Regression Calculator

Perform quadratic regression analysis

Raw Score Calculator

Convert between raw scores and standardized scores

Relative Error Calculator

Calculate relative error in measurements

Residual Calculator

Calculate residuals for regression analysis

Sampling Error Calculator

Calculate sampling error for statistical estimates

Wilcoxon Rank-Sum Test Calculator

Perform Wilcoxon rank-sum test

Youden Index Calculator

Calculate Youden index for diagnostic tests

🔧Other Calculators2 tools

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Sample Size CalculatorPopular

Calculate required sample size for statistical studies

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Shannon Entropy Calculator

Calculate Shannon entropy for information theory

🔄Redundant Calculators42 tools

10 Sided Dice Roller Calculator

Roll virtual 10-sided dice (identical to dice roller)

2 Dice Roller Calculator

Roll two virtual dice (identical to dice roller)

4-Sided Dice Roller Calculator

Roll virtual 4-sided dice (identical to dice roller)

6 Sided Dice Probability Calculator

Calculate 6-sided dice probabilities (identical to dice probability)

6 Sided Dice Roller Calculator

Roll virtual 6-sided dice (identical to dice roller)

90% Confidence Interval Calculator

Calculate 90% confidence intervals (identical to confidence interval)

95% Confidence Interval Calculator

Calculate 95% confidence intervals (identical to confidence interval)

99% Confidence Interval Calculator

Calculate 99% confidence intervals (identical to confidence interval)

AND Probability Calculator

Calculate AND probability events (identical to probability calculator)

Ascending Order Calculator

Sort data in ascending order (identical to least to greatest)

Combination without Repetition Calculator

Calculate combinations without repetition (identical to combination)

Combinations with Repetition Calculator

Calculate combinations with repetition (identical to combination)

Custom Dice Roller Calculator

Roll custom dice configurations (identical to dice roller)

D100 Dice Roller Calculator

Roll virtual 100-sided dice (identical to dice roller)

D20 Dice Roller Calculator

Roll virtual 20-sided dice (identical to dice roller)

Decimal Odds Calculator

Calculate decimal odds format (identical to odds calculator)

Decimal Random Number Generator

Generate decimal random numbers (identical to random number generator)

DnD Dice Roller Calculator

Roll D&D dice combinations (identical to dice roller)

False Positive Calculator

Calculate false positive rates (identical to false positive paradox)

First Quartile Calculator

Calculate first quartile (Q1) (identical to quartile calculator)

Fractional Odds Calculator

Calculate fractional odds format (identical to odds calculator)

Greatest To Least Calculator

Sort data from greatest to least (identical to ordering)

Least to Greatest Decimals Calculator

Sort decimal numbers (identical to least to greatest)

Lower Fence Calculator

Calculate lower fence for outliers (identical to upper and lower fence)

Moneyline Odds Calculator

Calculate moneyline odds format (identical to odds calculator)

OR Probability Calculator

Calculate OR probability events (identical to probability calculator)

Order from Least to Greatest Calculator

Order numbers from least to greatest (identical to least to greatest)

Ordering Decimals Calculator

Order decimal numbers (identical to least to greatest)

Ordering Numbers Calculator

Order numbers in sequence (identical to least to greatest)

Permutation with Repetition Calculator

Calculate permutations with repetition (identical to permutation)

Permutation without Repetition Calculator

Calculate permutations without repetition (identical to permutation)

Pie Chart Angle Calculator

Calculate pie chart angles (identical to pie chart calculator)

Pie Chart Percentage Calculator

Calculate pie chart percentages (identical to pie chart calculator)

Possible Combinations Calculator

Calculate possible combinations (identical to combination calculator)

Probability Fraction Calculator

Calculate probability fractions (identical to probability calculator)

Quartic Regression Calculator

Perform quartic regression analysis (identical to polynomial regression)

Random Dice Roller

Roll random dice (identical to dice roller calculator)

Sensitivity Calculator

Calculate test sensitivity (identical to sensitivity and specificity)

Specificity Calculator

Calculate test specificity (identical to sensitivity and specificity)

Third Quartile Calculator

Calculate third quartile (Q3) (identical to quartile calculator)

Two Dice Probability Calculator

Calculate two dice probabilities (identical to dice probability)

Upper Fence Calculator

Calculate upper fence for outliers (identical to upper and lower fence)