Adding a trendline in Excel Online is simple and can help you identify trends in your data. To do this, just select your chart, choose the option to add a trendline, and customize it to fit your needs. This guide will walk you through each step to ensure you can easily add trendlines to your Excel Online charts.
How To Add Trendline In Excel Online
To add a trendline in Excel Online, follow these steps to highlight data trends in your charts. This process involves selecting your chart, adding the trendline, and customizing it to suit your data.
Step 1: Select Your Chart
First, open Excel Online and select the chart to which you want to add a trendline.
It’s important to have your data already plotted in a chart. Make sure the chart is active by clicking on it, making it the focal point for the next steps.
Step 2: Click on Chart Elements Button
Step 2: Click on the Chart Elements button that appears when you select the chart.
Look for a small green plus sign icon next to your chart. This button will open a menu of options, making it easier to add different elements, including trendlines.
Step 3: Check Trendline Option
Step 3: In the Chart Elements menu, check the Trendline option.
By checking this box, a basic trendline will automatically be added to your chart. You can see it appear instantly, giving you a preliminary look at the trend in your data.
Step 4: Customize Your Trendline
Step 4: Click on the Trendline arrow to customize the trendline type and options.
Clicking the arrow next to the Trendline option lets you choose different types of trendlines (like linear, exponential, etc.) and adjust settings to better match your data and analysis needs.
Step 5: Review and Adjust If Necessary
Step 5: Review your chart and adjust the trendline if necessary.
After adding the trendline, take a moment to review how it fits your data. Make any necessary adjustments by going back into the Trendline options to ensure it’s accurately representing the trend.
After completing these steps, your Excel Online chart will display a trendline that helps visualize your data’s trend. This can be useful for presentations, reports, or personal data analysis.
Tips For Adding A Trendline In Excel Online
- Always ensure your data is well-organized before creating a chart. Clear, structured data makes trends easier to identify.
- Experiment with different trendline types to see which best fits your data.
- Use the trendline options to forecast future data points, adding more value to your analysis.
- Remember to label your trendline to make it clear to viewers what it represents.
- Don’t overcomplicate your chart with too many elements. Keep it simple and focused on the trendline and key data points.
Frequently Asked Questions
What types of trendlines can I add in Excel Online?
You can add linear, exponential, logarithmic, polynomial, power, and moving average trendlines.
How do I delete a trendline in Excel Online?
Select your chart, click on the Chart Elements button, and uncheck the Trendline option.
Can I add more than one trendline to a chart?
Yes, you can add multiple trendlines by repeating the steps for each data series.
How do I format the trendline in Excel Online?
Click on the trendline to open the formatting options, where you can adjust the color, style, and type.
Why can’t I see the Trendline option?
Make sure your chart type supports trendlines. Some charts, like pie charts, do not support trendlines.
Summary
- Select your chart.
- Click on Chart Elements button.
- Check Trendline option.
- Customize your trendline.
- Review and adjust if necessary.
Conclusion
Adding a trendline in Excel Online is an effective way to analyze and present your data trends. This simple process helps you to visually summarize the direction in which your data is moving. Following the steps outlined above, you can easily add and customize trendlines to suit your datasets.
Whether you’re a student, a business analyst, or just someone looking to make sense of some numbers, trendlines can be a powerful tool. Don’t hesitate to play around with different types and settings to find what best highlights the information you need.
For more detailed analyses, consider exploring additional Excel Online features or other data visualization tools. This basic skill of adding a trendline can be a stepping stone to more advanced data analysis techniques. So, dive in, experiment, and make your data work for you!

Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.