Which statistics are included in the results?

The results include the mean, median, mode, range, sample standard deviation, sample variance, sample size, sum, minimum, and maximum. Together those values describe the center of the data, the spread around that center, repeated values, and the endpoints of the observed data set.

Does it use sample or population standard deviation?

It uses sample variance and sample standard deviation whenever there is more than one value. That means it divides squared deviations by one less than the sample size. With exactly one value, sample variance and sample standard deviation are reported as not available.

How is the median calculated?

The calculator sorts the values from smallest to largest. If the count is odd, the median is the middle sorted value. If the count is even, the median is the average of the two middle sorted values, which can produce a value not originally in the data.

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Latest update: Aug 14, 2026

The statistics calculator summarizes a list of numbers: mean, median, mode, range, sample variance, sample standard deviation, sum, minimum, and maximum. Reach for it whenever you need center and spread before drawing a conclusion — classroom problems, lab observations, business metrics, or a sanity check on survey scores. Enter up to 100 values of the same kind of measurement, and you get a complete descriptive picture of where the data sits and how tightly it clusters. When some entries should count more than others, the weighted average calculator handles unequal importance, and the percentage change calculator frames a single before-and-after comparison. Browse the full Math & Scientific collection.

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Summarize a numeric data set with mean, median, mode, range, sample variance, sample standard deviation, sum, minimum, and maximum.

Updated Aug 14, 2026

Verified Aug 14, 2026

Frequently asked questions

Which statistics are included in the results?: The results include the mean, median, mode, range, sample standard deviation, sample variance, sample size, sum, minimum, and maximum. Together those values describe the center of the data, the spread around that center, repeated values, and the endpoints of the observed data set.
Does it use sample or population standard deviation?: It uses sample variance and sample standard deviation whenever there is more than one value. That means it divides squared deviations by one less than the sample size. With exactly one value, sample variance and sample standard deviation are reported as not available.
How is the median calculated?: The calculator sorts the values from smallest to largest. If the count is odd, the median is the middle sorted value. If the count is even, the median is the average of the two middle sorted values, which can produce a value not originally in the data.