Quick start
- Enter a list of numbers separated by commas, spaces, or line breaks.
- Press Calculate statistics.
- Review the mean, median, mode, range, quartiles, and standard deviation.
- Copy the summary or choose an example to compare data sets quickly.
Measures of center
Mean is the arithmetic average. Median is the middle value after sorting. Mode is the value or values that appear most often.
Different measures can tell different stories, especially when the data has outliers.
Measures of spread
Range shows the distance from the smallest value to the largest value. Quartiles divide sorted data into lower, middle, and upper portions.
Standard deviation and variance show how far values tend to sit from the mean.
Examples from the calculator
Mean = 17.2222222222
No mode
Median = 84
History, privacy, and copying
Recent answers stay visible in the page while you work. The history is kept only in the current browser tab and is not sent to a server.
Copy answer copies the expression and result so you can paste it into notes, homework, a message, or another document.