Statistics Calculators
Analyze data, run hypothesis tests, and understand statistics with 22 free calculators. Calculator Archive's statistics calculators support students, researchers, and analysts. From descriptive statistics to hypothesis testing and regression analysis, our statistics tools provide accurate results wi
All Statistics Calculators (22)
Standard Deviation
Calculate standard deviation, variance, mean, median, count, and range for any sample or population dataset with complete steps.
Permutation & Combination Calculator
Calculate standard permutations and combinations with or without repetitions using step-by-step factorial formulas.
Z-Score Calculator
Calculate the standard score (z-score) of a value given the population mean and standard deviation with detailed steps.
Normal Distribution Calculator
Calculate probabilities and values for normal distribution bell curves given mean, standard deviation, and boundaries.
Confidence Interval Calculator
Calculate confidence intervals for a population mean or proportion using sample statistics and custom confidence levels.
Margin of Error Calculator
Determine the margin of error of a survey or sample based on confidence level, sample size, and population size.
T-Test Calculator
Perform one-sample, independent two-sample, or paired t-tests to compare means and determine statistical significance.
Chi-Square Calculator
Calculate chi-square statistics, degrees of freedom, and p-values for contingency tables and statistical goodness-of-fit distributions.
Linear Regression Calculator
Solve linear regression lines, Pearson correlation coefficients (r), and coefficients of determination (R�) for any X-Y dataset.
One-Way ANOVA Calculator
Perform a one-way ANOVA test to compare the means of three or more independent groups and determine statistical variance.
Binomial Distribution Calculator
Calculate binomial probabilities for exact, cumulative, or range success intervals given trials and probability.
Poisson Distribution Calculator
Calculate Poisson probabilities for a specific number of events occurring within a fixed time interval or space.
Weighted Average Calculator
Calculate the weighted average of a dataset with dynamic values and matching weights.
Standard Error of the Mean (SEM) Solver
Calculate the standard error of the mean (SEM), standard deviation, sample size, variance, and confidence ranges for any dataset.
P-Value Calculator
Calculate p-values for standard normal distribution (Z-score), Student t-distribution, Chi-Square, and F-distribution. Supports one-tailed and two-tailed tests.
Sample Size Calculator
Calculate the minimum sample size required for survey research or statistical experiments. Supports margin of error, confidence level, and population values.
Correlation Calculator
Calculate Pearson correlation coefficient (r) and Spearman rank correlation instantly. Analyze relationships between two variables with step-by-step steps.
Mean Calculator
Calculate the arithmetic mean, weighted mean, geometric mean, and harmonic mean of a dataset. Perfect for student grading, finance, and statistics studies.
Median Calculator
Calculate the median of any numerical list instantly with step-by-step sorting processes.
Mode Calculator
Calculate the mode of any numeric or text list instantly. Identify unimodal, bimodal, multimodal, or no-mode datasets with frequency counts.
Range Calculator (Statistics)
Calculate the statistical range, minimum value, maximum value, and interquartile range (IQR) of any numerical list instantly.
T Score Calculator
Convert raw scores to T-scores or calculate t-statistics for hypothesis testing.