Statistics client-side
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How to use Statistics

This tool computes the main statistical indicators of a series of numbers. You paste or type your values and it returns the mean, median, mode, range, variance and standard deviation. These measures summarise the central tendency and the spread of your data at a glance. It is useful for analysing grades, times, lab measurements or survey results without opening a spreadsheet. The calculation runs entirely in your browser, so your data never leaves your device.

Calculate mean, median, mode, standard deviation and more.

StatisticsMeanMedianStd deviation

How to use Statistics

This tool computes the main statistical indicators of a series of numbers. You paste or type your values and it returns the mean, median, mode, range, variance and standard deviation. These measures summarise the central tendency and the spread of your data at a glance. It is useful for analysing grades, times, lab measurements or survey results without opening a spreadsheet. The calculation runs entirely in your browser, so your data never leaves your device.

Frequently asked questions

What is the difference between mean and median?

The mean is the sum of the values divided by their count, while the median is the middle value once the series is sorted. The median is more robust against extreme values.

What does the standard deviation measure?

The standard deviation shows how far the values stray from the mean. A low value means the data is clustered, a high value means it is spread out.

How do I enter my data?

You can separate your numbers with spaces, commas or line breaks. The tool reads the list automatically.

Is my data sent anywhere?

No, everything is computed locally in your browser. No value is transmitted to a server.