Statistics Calculators
Dive into data with our Statistics Calculators, which are essential for students, researchers, and data analysts. The Mean Calculator offers a quick way to calculate averages, while the Quartile Calculator provides insights into data distribution. Use our Variance Calculator for a deeper understanding of data variability or the GCF Calculator to determine the greatest common factor of a number set.
Average CalculatorAverage calculator: find the average of a list of numbers with the sum and count, plus the median, range, largest, smallest and geometric mean.
Mean CalculatorMean calculator: find the mean of a data set with the count and sum. Enter numbers with commas or spaces, then learn the formula and how outliers move it.
Mean, Median, Mode CalculatorMean, median, mode calculator: get all three plus the range, quartiles, IQR, outliers, sum and count for any data set, and learn to find each one by hand.
Odds CalculatorOdds calculator: turn odds for or against winning into the probability of winning and losing, and simplify the odds both ways. Learn the math by hand.
Percentile CalculatorPercentile calculator: find the value at any percentile of a data set, with a table of every 5th percentile. Learn to find a percentile rank by hand.
Permutation CalculatorPermutation calculator: find nPr, the number of ordered arrangements of r items chosen from n, as an exact whole number. Learn combinations by hand.
Quartile CalculatorQuartile calculator: find Q1, Q2 (the median), Q3 and the IQR of a data set, plus the minimum, maximum and range. Learn the method with a box plot.
Sample Size CalculatorSample size calculator: find how many survey responses you need for a confidence level and margin of error, with optional population size, or the margin.
Standard Deviation CalculatorStandard deviation calculator: find the sample or population standard deviation of a data set, with the variance, mean, count and sum of squares.
Variance CalculatorVariance calculator: get the sample and population variance of a data set side by side, with the standard deviation, mean, count and sum of squares.
Z-Score CalculatorZ-score calculator: find the z-score of a value from the mean and standard deviation, the probability below, above and between, and convert z to p.