Line charts in Excel - Step-by-Step Guide

Introduction

Line charts help you show how numbers change over time or categories. They make it easy to see trends and compare different groups in your data.

When you want to show monthly sales growth over a year.

When you need to compare temperature changes across different cities.

When tracking daily website visitors to see if traffic is increasing or decreasing.

When showing progress of multiple projects over several weeks.

When visualizing stock price changes day by day.

Steps

Step 1: Select

- the cells containing your data including labels

The data range is highlighted on the worksheet

Step 2: Click

- the Insert tab on the Ribbon

The Insert tab options appear

Step 3: Click

- the Line Chart icon in the Charts group

A menu with different line chart styles appears

Step 4: Select

- the first option called Line (the simple line chart)

Excel inserts a line chart on the worksheet showing your data trends

Step 5: Click

- the Chart Title text box on the chart

The title becomes editable

💡 Type a clear title that explains what the chart shows

Step 6: Use

- the Chart Tools Design and Format tabs to customize colors and styles

The chart updates with your chosen style and colors

Before vs After

Before

A table with dates in column A and sales numbers in column B with no visual summary

After

A line chart appears showing sales numbers rising and falling over the dates, making trends easy to see

Settings Reference

Chart Type

📍 Insert tab > Charts group > Line Chart dropdown

Choose the style of line chart that best fits your data presentation

Default: Line

Chart Title

📍 Click on the chart title box on the chart

Add a descriptive title to explain what the chart represents

Default: Chart Title

Legend

📍 Chart Tools Design tab > Add Chart Element > Legend

Show or hide the legend and choose its position

Default: Right

Axis Titles

📍 Chart Tools Design tab > Add Chart Element > Axis Titles

Add labels to the horizontal and vertical axes for clarity

Default: None

Common Mistakes

Selecting only the numbers without the labels before inserting the chart

The chart will not have axis labels or legend, making it hard to understand

Always select both the labels (like dates or categories) and the numbers before creating the chart

Using a line chart for data that is not continuous or time-based

Line charts imply a connection between points which can mislead if data points are unrelated

Use bar or column charts for categorical data without a natural order

Summary

Line charts show how data changes over time or categories using connected points.

Select both labels and numbers before inserting a line chart for clear axis and legend.

Customize titles and styles to make your chart easy to understand.