Statistics Calculator

Purpose: Paste a list of numbers and instantly get the full summary statistics - count, sum, mean, median, mode, range, min and max.

Numbers (comma, space or newline separated)

Statistics Calculator

The Statistics Calculator turns a list of numbers into a full summary - mean, median, mode, range, variance, and standard deviation - in one step.

What each measure tells you

Mean - the average; sensitive to outliers.
Median - the middle value; a better "typical" figure when data is skewed.
Mode - the most frequent value (there can be more than one).
Range - the gap between the smallest and largest values.
Variance & standard deviation - how spread out the data is around the mean.

Reading the spread

A small standard deviation means values cluster tightly around the mean; a large one means they are widely scattered. If your data is a sample of a larger population, use the sample statistics; if it is the entire population, use the population figures. The calculator provides both so you pick the right one.

Frequently Asked Questions

When should I use the median instead of the mean?

Use the median when your data is skewed or has outliers, because a few extreme values can pull the mean away from what is typical.

What is the difference between sample and population variance?

Population variance divides by N; sample variance divides by N−1 to correct for estimating from a sample. Use sample statistics when your data is a subset of a larger group.

Can there be more than one mode?

Yes. If two or more values share the highest frequency, the dataset is multimodal and all of them are reported.

How should I enter my numbers?

Paste or type your values separated by commas, spaces, or new lines - the calculator parses them automatically.