Here are the steps on how to add axis titles in a Microsoft Excel chart:

  1. Select the chart.
  2. On the Chart Design tab, in the Chart Elements group, click Axis Titles.
  3. Do any of the following:
    • To add a title to a primary horizontal (category) axis, click Primary Horizontal Axis Title, and then click the option that you want.
    • To add a title to a primary vertical (value) axis, click Primary Vertical Axis Title, and then click the option that you want.
    • To add a title to a secondary horizontal axis, click Secondary Horizontal Axis Title.
    • To add a title to a secondary vertical axis, click Secondary Vertical Axis Title.
  4. In the Axis Title text box, type the title that you want.
  5. (Optional) To change the font, size, or color of the title, select the title, and then use the formatting options on the Home tab.

Here are some additional tips for adding axis titles in Excel charts:

  • You can also add axis titles by right-clicking the chart and selecting Format Chart. In the Format Chart dialog box, click the Axis Titles tab and then enter the title text in the Axis Title text boxes.
  • You can move or resize the axis title by dragging it with your mouse.
  • To remove an axis title, select it and press the Delete key.