Chart & Visualization Issues

How to Make Labels Visible in a Stacked Column Chart

Huma Ashraf ChHuma Ashraf Ch Nov 3, 2026 869 views

Question details

The user needs to make data labels legible and prevent them from overlapping in a stacked column chart.

How to Make Labels Visible 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.
Before you start

Ensure your stacked column chart is already populated with data and that you have enabled data labels for the data series.

Solution 1Recommended

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.

1
Select the vertical axis

Right-click the vertical (value) axis on the left side of your stacked column chart and select 'Format Axis' from the context menu.

2
Access axis options

In the formatting pane that appears on the right side of your screen, navigate to the 'Axis Options' section.

3
Increase the maximum bound

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.

4
Review the layout

Click outside the pane to apply the changes. Review your chart to ensure the data labels now have adequate space and no longer overlap.

Adjust the Vertical Value Axis Scale
Tip for better spacing: You can also adjust the 'Major unit' value in the same pane to space out the gridlines, which can make the entire chart look less cluttered.
Optimize Charts Easily

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. 1. Open your chart: Open your spreadsheet containing the stacked column chart in WPS Office.
  2. 2. Open axis properties: Double-click the vertical axis to instantly open the right-side properties panel.
  3. 3. Adjust scale: Expand 'Axis Options' and input a higher 'Maximum' bound value to give the chart more headroom.
  4. 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.
Easily adjust axis scales with an intuitive, interactive formatting paneFully compatible with Microsoft Excel (.xlsx) chart formats and stylesOne-click layout adjustments for data labels, axes, and legendsFree, lightweight, and fast spreadsheet application
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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.