Average Calculator
Find the mean, median, minimum and maximum of a list of numbers. Just paste your values separated by commas.
Formula last reviewed 4 August 2026 · How we verify our calculators
Mean (average)
- Median
- 5
- Minimum
- 2
- Maximum
- 9
- Count
- 8
Updates live as you type
Frequently asked questions
The mean is the sum of all values divided by how many there are. The median is the middle value when the numbers are sorted. The median is less affected by extreme outliers.
Type or paste them into the box separated by commas or spaces, for example “12, 18, 7, 25”. Non-numeric entries are ignored automatically.
When there is an even number of values, the median is the average of the two middle values after sorting.
Yes. The calculator accepts decimals and negatives and includes them in the mean, median, minimum and maximum.
Summarise any set of numbers
From exam marks to monthly expenses to sensor readings, you often need a quick summary of a list of numbers. This average calculator gives you the four figures that matter most: the mean, the median, and the minimum and maximum.
Just paste your values into the box, separated by commas or spaces. The tool cleans up the input — ignoring stray text and blank entries — and instantly reports the results along with a count of how many numbers it used.
Worked example
At the default list — 2, 4, 4, 4, 5, 5, 7, 9 — the eight values sum to 40, giving a mean of 5. Sorted, the two middle values (4th and 5th) are 4 and 5, so the median is their average, 4.5. The minimum is 2 and the maximum is 9, with a count of 8. Notice the mean (5) and median (4.5) are close here because the data has no extreme outliers — a single very large value added to this list would pull the mean upward while barely moving the median.
Why both the mean and the median matter
Knowing both figures is useful because they tell different stories about the same data. The mean reflects every value equally, so a single very large or very small number can pull it noticeably off-centre. The median, being the middle value once sorted, is far more resistant to such outliers — which is exactly why national incomes and house prices are usually quoted as medians rather than means, since a handful of extremely high values would otherwise distort the average for everyone else. Use this calculator for grades, budgets, scores, survey data or any everyday dataset where you want a fast, reliable summary. For percentage-based comparisons on top of your data, pair it with our percentage calculator.