About the Mean Median Mode Calculator
What is the Mean Median Mode Calculator?
The mean, median and mode are the three standard measures of the centre of a data set. The mean is the arithmetic average, the median is the middle value once the data is sorted, and the mode is the value that occurs most often.
Each tells a different story. Salaries, house prices and other skewed data are usually better described by the median, because a few very large values pull the mean upwards. The mode is the only one that also works for categories, such as the most common shoe size sold.
How to use the Mean Median Mode Calculator
- Numbers (separated by commas or spaces) — separate numbers with commas, spaces or line breaks. (sample: 4, 7, 7, 9, 12, 15, 7, 9)
- Press Find Mean, Median & Mode (results also refresh as you type). The result card shows the Mean, along with Median, Mode, Range and Count.
Formula used
Mean = Σx ÷ n Median = middle value of the sorted list
- n = the number of values
- Median = for an even n, the average of the two middle values
- Mode = the value(s) with the highest frequency
A data set can have one mode, several modes (bimodal, multimodal) or no mode when every value appears exactly once.
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Numbers (separated by commas or spaces) | 4, 7, 7, 9, 12, 15, 7, 9 |
| Result | Value |
|---|---|
| Mean | 8.75 |
| Median | 8 |
| Mode | 7 |
| Range | 11 |
| Count | 8 |
Tips for using the Mean Median Mode Calculator
- If the mean is much larger than the median, the data is skewed to the right by a few large values.
- The median is not affected by how extreme the largest and smallest values are — only by their position.
- The range (largest − smallest) is a quick first measure of spread; use the Standard Deviation Calculator for a fuller picture.