Statistics calculators
Analyze data in seconds: mean, median, standard deviation, combinations, permutations and probability. Paste your numbers into TudoCalc's statistics calculators and get the full result.
Mean & standard deviation
Paste a list of numbers and get mean, median, standard deviation, min, max and sum.
Combinations & permutations
Calculate combinations C(n,r), arrangements P(n,r) and the factorial from n and r.
Probability
Calculate the probability of an event from the favorable cases and the total possible cases.
Geometric mean
Calculate the geometric mean of a list of numbers — ideal for growth rates and returns.
Z-score
Calculate the z-score of a value and its percentile in the normal distribution.
Sample size
Find out how many people to survey based on margin of error and confidence level.