Excel Charts

Excel Charts turn a table of numbers into a visual picture, and this page covers picking the right chart type, inserting it, and shaping it with titles, labels, and a legend.

Turning Numbers into a Chart

A table of numbers is precise, but a chart is fast to read - it lets someone spot a trend or an outlier in a second instead of scanning a grid of cells. In Excel, you build a chart by first selecting a range of data (including its header row) and then choosing a chart type from the Insert tab. The chart Excel creates stays linked to that range, so it updates automatically whenever the underlying numbers change.

Choosing the Right Chart Type

  • Column or Bar - best for comparing a value across a handful of categories
  • Line - best for showing a trend over time, such as monthly revenue
  • Pie - best for showing how a whole splits into a few parts (keep it to 5-6 slices or fewer)
  • Scatter - best for showing the relationship between two numeric variables
MonthRevenue
Jan12400
Feb13650
Mar11800
Apr15200
May16100
Jun14750

Inserting a Chart in Three Clicks

Example: Charting the Table Above

1. Select A1:B7 (Month and Revenue, including headers)
2. Insert tab > Charts group
3. Click Insert Column or Bar Chart > Clustered Column
4. The chart appears on the sheet - drag its border to reposition it

Adding Titles, Labels, and a Legend

Click the chart to select it, then click the plus-sign 'Chart Elements' button that appears at its top-right corner (or use the Chart Design tab). From there you can turn on a Chart Title, Axis Titles, Data Labels showing the exact value above each bar, and a Legend to identify each series when a chart plots more than one. Double-clicking any title lets you retype it directly on the chart.

Adjusting a Chart After You've Made It

Nothing about a chart is permanent. 'Switch Row/Column' on the Chart Design tab flips which axis reads the categories and which reads the series - useful when Excel guesses the layout backwards. 'Select Data' lets you add, remove, or re-point a series to a different range. And 'Change Chart Type' swaps the whole chart - a column chart into a line chart, for instance - without losing the formatting you've already applied.

Note: Pie charts are easy to misuse: once you go past five or six slices, the tiny wedges become impossible to compare by eye, and pie charts should only be used when the values genuinely add up to one whole. For anything else - especially comparisons across many categories - a column or bar chart communicates the same numbers far more clearly.

Exercise: Excel Charts

If the source data for a chart changes, what happens to the chart by default?