Free Online Calculators
Mean, median & mode from comma-separated numbers
This calculator finds the mean, median, and mode of any set of numbers — just enter your values separated by commas. The mean is the sum divided by the count, the median is the middle value when sorted, and the mode is the most frequently occurring number. Get all three key statistics instantly from your data.
The mean is the sum of all values divided by how many values there are, written as mean = Σx / n. The median is the middle value once the data is sorted (the average of the two middle values if the count is even), and the mode is simply the value that appears most often.
Sort your values from smallest to largest, then take the middle one. With an odd count there is exactly one middle value; with an even count you average the two middle values.
Sort the data and jump straight to position (n + 1) ÷ 2, where n is how many values you have. For an even count that formula lands between two positions, so you average those two neighbouring values.
Add up every value in your list, then divide that total by the number of values. Writing the sum down in groups of a few numbers reduces mistakes when the list is long.
Sum the values and divide by the count — there is no shortcut that avoids the sum. If the numbers cluster around a round figure, subtract that figure from each value, average the small differences, and add the round figure back.
For the mean, divide the sum of all values by their count; for the median, sort the values and take the middle one. Both use the same data, but only the median needs the numbers in order.
Use the median when the data is skewed or contains extreme outliers, since single very large or very small values barely move it. The mean is preferable for roughly symmetric data and when you need a figure that can be combined further, for example to recover a total.
Whether you're a student crunching numbers for a statistics class, a teacher grading test scores, or a professional analyzing sales data, understanding the central tendency of a dataset is one of the most fundamental skills in mathematics and data analysis. Our free Mean, Median & Mode Calculator lets you enter any list of comma-separated numbers and instantly receive all three measures of central tendency — mean, median, and mode — in a single click. No spreadsheets, no manual sorting, no formulas to memorize. Just paste your numbers, hit calculate, and get clear, accurate results every time.
These three statistics each describe the "center" of a dataset in a slightly different way. Together, they paint a far more complete picture than any single number could on its own. Here's a quick breakdown of what each one actually measures:
The mean is what most people think of when they hear the word "average." It is calculated by adding up all the values in your dataset and then dividing that sum by the total count of numbers. The formula looks like this:
Mean = Sum of all values ÷ Number of values
For example, if your dataset is 4, 8, 6, 5, 3, the sum is 26 and there are 5 values, so the mean is 26 ÷ 5 = 5.2. The mean is highly sensitive to extreme values (called outliers), which is why it's sometimes not the best measure to use alone.
The median is the middle value when your numbers are arranged in ascending order. It splits the dataset exactly in half — 50% of values fall below it and 50% fall above it. The calculation depends on whether you have an odd or even count of numbers:
For example, with the sorted dataset 3, 4, 5, 6, 8, the median is 5 (the third value out of five). The median is especially useful when your data contains outliers, because unlike the mean, extreme values don't skew it significantly.
The mode is the value (or values) that appear most frequently in your dataset. A dataset can have one mode (unimodal), two modes (bimodal), or even more (multimodal). If every number appears exactly once, there is technically no mode. Our calculator fully supports multimodal datasets, so it will correctly report all modes when more than one value ties for the highest frequency.
Using this tool is straightforward and takes only seconds. Follow these simple steps:
A teacher records the following quiz scores for 9 students: 72, 85, 90, 85, 78, 92, 85, 67, 88. She wants to understand the class's overall performance.
In this case, all three measures are relatively close together, suggesting a fairly consistent class performance with no extreme outliers dragging the average up or down.
A small business owner tracks monthly revenue (in thousands) over 6 months: 18, 22, 19, 45, 21, 20. One exceptional month (45) stands out.
Here, the mean of 24.2 is inflated by the outlier month of 45, while the median of 20.5 gives a more realistic picture of typical monthly revenue. This is a perfect example of why relying on the mean alone can be misleading.
A shoe store owner wants to know which size to stock most. Customer purchases over a week: 8, 9, 10, 8, 7, 9, 8, 10, 9, 8.
In this scenario, the mode is the most actionable statistic. The store should stock more size 8 shoes because it's the most frequently purchased. The mean and median confirm this is around the center of demand.
For school grades, a weighted average is often what you need: the grade calculator weights assignments and exams, and the GPA calculator averages letter grades by credit hours.
The mean takes every value into account equally and is best used when your data is symmetrically distributed without extreme outliers. The median, on the other hand, is resistant to outliers because it only considers the middle position of sorted data. If your dataset contains very high or very low values that don't represent typical cases — like income data or housing prices — the median is usually the more meaningful statistic. For most everyday datasets with no extreme skew, the mean and median will be close to each other.
Yes, absolutely. A dataset is called bimodal if two values appear with the same highest frequency, and multimodal if three or more values tie. For example, in the dataset 2, 3, 3, 5, 7, 7, 9, both 3 and 7 each appear twice, making them both modes. Our calculator automatically detects and displays all modes, so you never miss a tie. If every value in the dataset is unique, the calculator will indicate that there is no mode.
No — you can enter your comma-separated numbers in any order and the results will be identical. The calculator automatically sorts the values internally before computing the median, and the mean and mode calculations are completely order-independent. This means you can copy and paste data directly from a spreadsheet, a list, or any source without worrying about sorting it first. The tool does the heavy lifting for you.