Average Calculator (Mean, Median, Mode)
Paste your numbers and get the mean, median, mode, and range at once — with the difference explained.
The average of a set of numbers is usually the mean: add them up and divide by how many there are. For 2, 4, 4, 4, 5, 5, 7, 9, the sum is 40 and the count is 8, so the mean is 5. The median (middle value) is 4.5 and the mode (most common value) is 4. Paste your own numbers to get all three at once.
Results are estimates provided for general information.
Anything that isn't a number is ignored. Decimals and negatives are fine.
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About the Average Calculator
"Average" sounds like one number, but there are three of them and they answer different questions. The mean is what most people mean by average: the total divided by the count. It's the right tool when values cluster together, but a single huge or tiny number drags it around — one billionaire in a room makes the mean income useless. The median is the middle value once everything is sorted (or the halfway point between the two middle values when the count is even), and it shrugs off those outliers, which is why incomes and house prices are usually reported as medians. The mode is simply the value that shows up most often, and a set can have more than one mode or none at all. This calculator takes a list of numbers separated by commas, spaces, or new lines and returns all three averages plus the range, sum, count, minimum, and maximum, so you can see not just the center of your data but how spread out it is. Enter your numbers and the results update as you type.
Frequently asked questions
What's the difference between mean, median, and mode?+
The mean is the sum divided by the count. The median is the middle value when the numbers are sorted. The mode is the value that appears most often. They agree on symmetric data and diverge when the data is skewed or has outliers — which is exactly when knowing all three helps.
How do you find the median of an even set of numbers?+
Sort the numbers and take the two in the middle, then average them. For 4, 6, 8, 10 the two middle values are 6 and 8, so the median is 7. This calculator does that automatically.
Can a set of numbers have more than one mode?+
Yes. If two or more values tie for most frequent, the set is multi-modal and all of them are modes. If every value appears exactly once, there is no mode at all. This tool lists every mode it finds, or tells you there isn't one.
Which average should I use?+
Use the mean for evenly spread data, the median when there are outliers or a skew (income, prices, response times), and the mode when you care about the most common category or value. Reporting more than one is often the honest choice.
What is the range?+
The range is the largest value minus the smallest — a quick measure of spread. A small range means the numbers are tightly grouped; a large one means they're scattered. It's shown here alongside the averages so the center and the spread sit side by side.
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