Average Calculator (Mean, Median, Mode)
Paste any list of numbers — separated by commas, spaces or new lines — and this returns the mean, median, mode, sum, range and standard deviation at once. It recalculates as you type and never leaves your browser.
- 100% free
- Private & safe
- Runs in your browser
Why use Average Calculator?
Average Calculator gives you accurate results instantly, with the underlying formula shown so you can trust the numbers.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Handles Mean = sum ÷ count; Median = middle value (or average of two middle values); Std dev (population) = √(Σ(x−mean)² ÷ n).
- Paste or type your numbers, separated by commas, spaces or new lines.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Average Calculator
- Paste or type your numbers, separated by commas, spaces or new lines.
- See the mean, median and mode update instantly.
- Review sum, count, range, min, max and standard deviation.
- Adjust the list to explore the statistics.
Examples
- Averaging a set of test scores.
- Finding the median of a price list.
Formulas
- Mean = sum ÷ count
- Median = middle value (or average of two middle values)
- Std dev (population) = √(Σ(x−mean)² ÷ n)
Limitations
- Standard deviation shown is the population standard deviation.
- Non-numeric entries are ignored.
Frequently asked questions
What separators can I use?
Commas, spaces or new lines — mix them freely.
Is the standard deviation sample or population?
Population standard deviation (divided by n).
What if there is no mode?
If no value repeats, the mode is shown as 'none'.
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