Calculate mean, median, mode, standard deviation and more
Drop in a dataset and get a full statistical summary in seconds. This tool computes mean, median, mode, standard deviation, variance, range, quartiles, and more. Whether you are analyzing survey responses, lab measurements, or sales figures, you get the numbers you need without writing formulas or opening a spreadsheet.
Initializing in your browser…
You have a small sample of measurements and need the mean, median, and spread without opening a stats package.
Data
4, 8, 6, 5, 3, 9
Results
mean 5.83 median 5.5 range 6 variance 4.47 SD 2.11 Q1 4 · Q3 8 · IQR 4
Mean is the sum (35) over the count (6); median is the average of the two middle values once sorted (5 and 6). It reports the population standard deviation alongside quartiles and the interquartile range, so you see the spread the mean alone hides.
Drop in a dataset and get a full statistical summary in seconds. This tool computes mean, median, mode, standard deviation, variance, range, quartiles, and more. Whether you are analyzing survey responses, lab measurements, or sales figures, you get the numbers you need without writing formulas or opening a spreadsheet.
Summarize experimental data quickly before running deeper analysis in specialized software.
Compute averages, spreads, and percentiles for KPIs, sales data, or customer metrics.
Check process measurements against tolerance ranges using mean, standard deviation, and range.
Verify hand-calculated statistics homework answers against the tool's output.
Beyond basic descriptive statistics, the calculator derives skewness and kurtosis to characterize the shape of your distribution. Quartile values (Q1, Q3) and interquartile range help identify outliers, while sum and count provide raw totals. Results update instantly as you add, remove, or edit data points, so iterative analysis is seamless.
Population standard deviation divides by N (the total count), while sample standard deviation divides by N-1 to correct for bias when working with a subset of a larger population.
There is no hard limit. Performance stays snappy for typical datasets of several thousand values.
Yes. Copy a column from Excel or Google Sheets and paste it directly into the input field.
Every calculation runs locally in your browser. Your numbers and expressions are not transmitted or stored.