- Go to the worksheet where your chart (such as a scatter plot or line chart) is displayed.
- Go to the 'Analytics' pane on the left side next to the Data pane, then locate the 'Average Line' option.
- Drag the Average Line onto your worksheet.
- An average line will appear on your chart.
How to Add an Average Line in Tableau
Use this step-by-step demo to learn how to add an average line in Tableau.
📌 Why this matters
Adding an average line transforms scattered data points into actionable insights by providing an instant reference point for performance evaluation. You can immediately identify which values exceed expectations and which fall short, making outliers and trends far more apparent. Beyond simple comparison, average lines reveal data distribution patterns that influence strategic decisions. When stakeholders see how individual metrics relate to the overall average, they grasp performance context faster than scanning raw numbers, leading to more informed discussions about resource allocation and goal setting.
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