Mean Median Mode Calculator

What this calculator does

The Mean, Median and Mode Calculator summarizes a set of numbers using three different measures of central tendency. Each measure describes the data differently and can be useful in different situations.

How to use the calculator step by step

Enter the dataset in the format requested by the page, usually separated by commas or spaces. Calculate the results and consider the shape of the data before deciding which measure best represents a typical value.

How the calculation works

The mean is the sum of all values divided by the number of values. The median is the middle value after sorting the dataset, or the average of the two middle values when there is an even count. The mode is the value that occurs most often.

Worked example and scenario testing

For 2, 3, 3, 4, and 18, the mean is 6, the median is 3, and the mode is 3. The unusually large value 18 pulls the mean upward but does not change the median nearly as much.

How to interpret your result

The mean uses every value and is sensitive to outliers. The median is often more representative for skewed data. A dataset can have one mode, several modes, or no repeated value.

Accuracy, assumptions, and limitations

These statistics describe the center of the dataset but do not show spread, variability, distribution shape, or whether the sample represents a larger population.

Common mistakes to avoid

Common mistakes include forgetting to sort values before finding the median, assuming every dataset has exactly one mode, or ignoring extreme values that distort the mean.

Privacy and browser-based calculations

Only the numerical dataset is processed. Do not paste confidential records when anonymous numbers are sufficient.

Frequently asked questions