Mean, Median, and Mode Calculator

Use this calculator to help you quickly find the mean, median, and mode of a data set.

Enter a data set separated by commas, spaces, or line breaks.

Knowing how to find the mean, median, and mode is an important math concept to understand!

A bell curve graph shows mean, median, and mode positions, with definitions for each and for range listed below the graph.

Take a look at these examples to see how each property can be calculated:

Finding the Mean

The mean is the average of all the numbers in a data set.

💡 Find the mean of the following weekly high temperatures:

85.5°F, 92°F, 78°F, 88.5°F, 95°F, 89°F, 76.5°F

To find the mean, you add up all the values and then divide by the total number of values.

First, let’s add up all the temperatures in our data set:

\(85.5+92+78+88.5+95+89+76.5=604.5\)

Next, count how many values are in the data set (7) and divide our original sum by this amount:

\(604.5\div 7 \approx 86.36\)

Rounding to one decimal place gives us a mean temperature of 86.4°F!

The median is the middle value in a data set.

💡 Find the median of the following test grades:

95, 76, 88, 92, 85, 99, 79, 81

First, let’s range the numbers in order from least to greatest:

76, 79, 81, 85, 88, 92, 95, 99

We know that the median is the middle number, but we have an even number of values, so there are two middle numbers:

76, 79, 81, 85, 88, 92, 95, 99

To find the true median, we need to find the average of these two middle numbers:

\(\dfrac{85+88}{2}=\dfrac{173}{2}=86.5\)

Therefore, the median test score is 86.5.

The mode is the value that appears most frequently in a data set.

💡 Find the mode of the following data set:

5, 7, 8, 10, 7, 6, 9, 5, 8, 5, 7

To find the mode, simply count how many times each value appears:

Both 5 and 7 appear three times, which is more than any other number. This means that our data set has two modes, making it a “bimodal” data set.

Click below to watch a comprehensive video about mean, median, and mode, along with other helpful resources to help you fully grasp the topic!