In this Excel tutorial, you will learn how to insert a box plot into your spreadsheet in Excel.
Median calculation
Calculate the median, Q1, Q3, min and max of the data. Calculate box top (Q3-Q2), box middle (Q2-Q1), box low (Q1), positive error (max-Q2) and negative error (Q2-min).
Inserting box plot
Click on INSERT tab, click on Insert Column Chart and then click on Stacked Column.
Right click on the chart and click on Select Data. Select "box low, boxmid and box high" range.
Right click on the bottom blue bar and change both the OUTLINE and FILL to nothing.
Click on the + sign, select error bars. Choose series 2. Click on more option. In the task bar to the right select CUSTOM and then SPECIFY VALUE.
For positive error values select error up and for negative error values select error down.
That’s it. Box Plot is ready.
Further reading: How to insert Box and Whisker in Excel