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Average calculator

Explore mean, median, modes, range, and standard deviation with a live distribution of your number list.

Live distribution
Mean20
Median18
Count7
Range18
1230

Bar labels count values in each equal-width interval. The last interval includes the maximum. Full statistics are included in the saved report.

Separate with commas, spaces, or newlines. Decimal point is a dot.
Sorted values & spread

12, 15, 18, 18, 22, 25, 30

Population σ: 5.68205194324 · Sample s: 6.13731754651

Processed on your device

How it works & useful details

How it works & limits

Supports 1–1,000 values, up to 25,000 characters, and magnitudes up to 1e12. Thousands separators are not supported: 1,000 is two values, 1 and 0. Scientific notation such as 1e3 is accepted.

Mean is sum ÷ count. Median is the middle sorted value (or mean of the middle pair). Every repeated value tied for greatest frequency is a mode. Population deviation divides by n; sample deviation divides by n − 1. Floating-point results are rounded to 12 significant digits.

Your working space

Change the values to explore the preview. Use the action below to create a copyable, downloadable result. All calculations stay on this device; refreshing clears your work.