# Box Plots Calculator and Grapher

Online box plot graphers and calculators, to help you understand the quartiles and spread of data, are presented. These graphing calculators accept data sets in the form of values separated by commas. These graphers also calculate the quartiles, standard deviation and mean and present these statistical parameters on the same diagram. A grapher for up to five different data sets may be used to compare how data is distributed in different data sets.

## Use Box Plots Calculator and Grapher for One Data Set

This grapher is for one data set and includes one box plot with the quartiles and median, a second box plot including the mean and a third box plot including information about the standard deviation. Edit or enter data values separated by commas and press "Create Box Plots". If you have data that is already formatted (values separated by commas) it may be copied and pasted into the data input.

Data Values:

On the left side (in red), data values (dots) and the box plot are displayed. This will help undrestand how the quartiles split the data into 4 intervals with 25% of the data values in each group.
In the middle (in blue), the box plot of the same data with the mean represented by a broken line.
On the right side (in blue), the box plot of the same data with the standard deviation σ represented by the upper and lower vertices of a rhombus corresponding to mean + σ and mean - σ respectively. This box plot gives more information on how is data distributed around the mean.
Hover the mousse cursor over any of the graphs and statistical quantities such as quartiles, median, mean and standard deviation will be displayed.
Hover the mousse cursor at the top right of the diagram and one option allows to download the box plot as png file.

## Use Box Plots Calculator and Grapher for Five Sets of Data

This calculator and grapher creates box plots for up to five data sets. It makes comparison of data set distributions easier. If you have less than five data sets to visualize; leave the input of the other data sets "empty". Enter and edit data and press the button "Create Several Box Plots". Data already formatted (values separated by commas) may be copied and pasted into the data input.

Data Values Set 1:

Data Values Set 2:

Data Values Set 3:

Data Values Set 4:

Data Values Set 5:

Hover the mousse cursor over any of the graphs and the minimum and maximum data values along with the quartiles and median will be displayed.
Hover the mousse cursor at the top right side of the diagram and one option allows to download the box plot as png file.