How to Make Labels Visible in a Stacked Column Chart
Question details
The user needs to make data labels legible and prevent them from overlapping in a stacked column chart.

- Product
- Spreadsheet Software
- Device & OS
- not provided
- Scenario
- Formatting a stacked column chart where the current data label sizes or chart scale cause the text to overlap.
- Observed behavior
- Chart data labels overlap each other or are difficult to read within the stacked columns.
Ensure your stacked column chart is already populated with data and that you have enabled data labels for the data series.
Adjust the Vertical Value Axis Scale
Change the maximum bounds of the vertical axis to create more vertical space in the chart area, which helps prevent labels from crowding at the top.
Often, labels overlap because the chart area does not have enough space to accommodate the text. Manually overriding the automatic axis scale allows you to stretch the chart vertically.
Right-click the vertical (value) axis on the left side of your stacked column chart and select 'Format Axis' from the context menu.
In the formatting pane that appears on the right side of your screen, navigate to the 'Axis Options' section.
Locate the 'Bounds' settings. Change the 'Maximum' value to a number higher than the current auto-generated maximum to increase the vertical ceiling of your chart.
Click outside the pane to apply the changes. Review your chart to ensure the data labels now have adequate space and no longer overlap.

Modify Data Label Position and Formatting
Change the internal placement of the labels and reduce their font size so they fit better inside the individual stacked columns.
Fix Chart Visuals Seamlessly in WPS Spreadsheet
WPS Office offers intuitive chart formatting tools that make it incredibly simple to adjust axis scales, format data labels, and create professional-looking stacked column charts without overlapping text.
- 1. Open your chart: Open your spreadsheet containing the stacked column chart in WPS Office.
- 2. Open axis properties: Double-click the vertical axis to instantly open the right-side properties panel.
- 3. Adjust scale: Expand 'Axis Options' and input a higher 'Maximum' bound value to give the chart more headroom.
- 4. Format labels: Click on your data labels and use the floating chart tools menu to quickly adjust font size, color, and alignment for perfect visibility.

Frequently Asked Questions
Why do my data labels overlap in a stacked column chart?
Labels usually overlap when the numerical data values are too small relative to the total column height, making the individual colored segments too narrow to accommodate the text size of the label.
Can I manually move individual data labels in a chart?
Yes. Click once on a data label series to select them all, then click a second time on the specific label you want to move. You can then drag that individual label to an empty space in the chart area.
How do I change the number format of the labels to make them shorter?
Right-click the data labels and select 'Format Data Labels'. Go to the 'Number' category and apply a custom format, such as showing values in thousands (e.g., '0K') or millions, which significantly reduces the character length and saves space.
Is it possible to rotate data labels in a stacked chart?
Yes. In the 'Format Data Labels' pane, go to the 'Size & Properties' or 'Alignment' tab. Look for 'Text direction' or 'Custom angle' and rotate the text vertically (e.g., 270 degrees) so it fits better inside narrow columns.




