Mean, median, standard deviation, regression, and probability distribution calculators.
Most used tools
Calculate the average of a set of numbers
Find the middle value of a set of numbers
Measure the spread of data around the mean
Calculate the standard deviation of your data
Estimate a population mean range at given confidence
Get a full statistical summary of your data
Recently popular tools
30 tools available
Calculate the average of a set of numbers
Find the middle value of a set of numbers
Find the most frequent value in a dataset
Calculate the spread between max and min values
Measure the spread of data around the mean
Calculate the standard deviation of your data
Calculate an average with assigned weights
Calculate the geometric mean of positive numbers
Calculate the harmonic mean for rates and ratios
Find the value below which a percentage falls
Divide your data into four equal parts
Measure the spread of the middle 50% of data
Calculate how many standard deviations from the mean
Calculate the t-score for standardization
Estimate a population mean range at given confidence
Determine the precision of your survey results
Determine the ideal sample size for your study
Find the best-fit line for paired data
Measure the strength of linear relationship
Determine how well regression fits your data
Measure how two variables change together
Compute probabilities for the bell curve
Compute probabilities for repeated binary trials
Compute probabilities for rare event counts
Test a claim about a population mean
Test a mean when population variance is unknown
Test goodness of fit between observed and expected
Smooth time series data with a rolling window
Get a full statistical summary of your data
Identify unusual values using the IQR method
More math tools available
Our statistics calculators provide accurate, instant results for students, teachers, and professionals. Each calculator uses mathematically verified formulas and handles edge cases like invalid inputs, division by zero, and overflow conditions.
Whether you need to solve equations, compute integrals, find prime factors, or convert between number bases, our statistics tools deliver reliable results with step-by-step explanations to help you understand the underlying mathematics.
