Average Calculator
Find the mean, median, mode, range, sum, min, max and geometric mean of any list of numbers — paste comma, space or newline separated values.
About the Average Calculator
This average calculator takes any list of numbers — pasted from a spreadsheet, typed with commas, spaces or one per line — and instantly reports the full set of central-tendency statistics: arithmetic mean, median, mode, geometric mean, plus the range, sum, minimum, maximum and count.
Each measure answers a different question. The mean is the familiar total ÷ count; the median is the middle value and resists outliers, which is why house prices and salaries are usually reported as medians; the mode is the most frequent value; and the geometric mean is the right average for growth rates and ratios.
Students use it for statistics homework, teachers for averaging marks, analysts for quick data checks and shoppers for comparing prices. Everything is computed locally in your browser the moment you finish typing — no upload, no sign-up.
How to Use the Average Calculator
- 1Type or paste your numbers into the box, separated by commas, spaces or new lines.
- 2Results appear instantly as you type.
- 3Read the mean, median and mode in the highlighted cards.
- 4Check the sum, range, min, max, count and geometric mean below them.
Frequently Asked Questions
What is the difference between mean, median and mode?
The mean adds all values and divides by the count. The median is the middle value once the list is sorted (or the average of the two middle values for an even count). The mode is the value that appears most often. For 2, 3, 3, 10 the mean is 4.5, the median is 3, and the mode is 3 — outliers pull the mean but not the median.
When should I use the median instead of the mean?
Use the median when your data has outliers or is skewed — incomes, house prices, response times. One billionaire in a room of 50 people drags the mean income into the millions while the median barely moves. Use the mean when data is roughly symmetric or when you genuinely need the arithmetic total shared equally, such as average marks.
What is the geometric mean used for?
The geometric mean multiplies n values and takes the n-th root, making it the correct average for quantities that compound: investment returns, growth rates, ratios and indices. Gaining 50% then losing 50% has an arithmetic mean of 0% but a geometric mean of about −13.4% — matching the real loss. It is defined only when every value is positive.
What does it mean if my data has no mode?
If every value in your list appears exactly once, no value is "most frequent", so the data set has no mode — the calculator reports this rather than picking arbitrarily. A data set can also be bimodal or multimodal when two or more values tie for the highest frequency; in that case all tied values are listed.
Can I paste data straight from Excel or Google Sheets?
Yes. Copy a column or row of cells and paste it into the box — spreadsheet data arrives separated by new lines or tabs, and the calculator accepts commas, spaces, tabs and line breaks interchangeably. Any text that is not a valid number is simply ignored, so stray headers usually do not break the calculation.