H1_Statistics Calculator - Mean, Median, Mode Online | MultiTool

How it works

Free statistics calculator. Compute mean, median, mode, range, variance and standard deviation from any list of numbers. Instant results.

Mean, median, mode: when to use which

• Mean uses every value — perfect for symmetric data, but one billionaire in the room drags the “average income” far above what anyone earns.
• Median is the middle value — the honest choice for skewed data. That is why income and housing reports quote medians, not means.
• Mode is the most frequent value — for categories (most sold shoe size) and for spotting repeated results.
• Standard deviation measures spread: two classes can share a mean of 70 while one has everyone at 68–72 and the other ranges 40–100. The spread is the story the mean hides.
• Sample vs population: if your data is a sample of a bigger group, the calculator's sample standard deviation (dividing by n−1) is the statistically correct one — the correction exists precisely to keep small samples honest.

Paste or type your numbers and the tool computes the full set — count, sum, mean, median, mode, min/max, range, variance and both deviations — instantly, locally.

Your privacy

Everything runs entirely in your browser. Nothing you type is ever sent to any server or stored.