Gratuito online statistics calculator. Calculate mean, median, mode, standard deviation, variance, quartiles, range, and detect outliers instantly. Step-by-step breakdown. Puro client-side.
This statistics calculator computes all common descriptive statistics from your dataset in one place. Whether you are a student analyzing data, a researcher computing summary statistics, or anyone who needs quick statistical calculations — everything is instant and private. All calculations happen in your browser with no data sent a any server.
The calculator computes: count, sum, mean (average), median, mode, range, minimum, maximum, sample standard deviation, population standard deviation, sample variance, population variance, first quartile (Q1), third quartile (Q3), interquartile range (IQR), and outlier detection.
Outliers are detected using the 1.5×IQR rule. Values below Q1 - 1.5×IQR or above Q3 + 1.5×IQR are flagged as outliers. This is a standard statistical method for identifying unusual values in a dataset.
Sample standard deviation uses n-1 in the denominator (Bessel's correction) and is used when your data is a sample from a larger population. Population standard deviation uses n and is used when your data represents the entire population.
Yes! You can enter numbers separated by commas, spaces, tabs, or new lines. The calculator automatically parses all valid numbers from your input.
Yes, completely free. No ads, no registration, no limits. All calculations happen in your browser.