How to Add Trendline in Google Sheets: A Step-by-Step Guide

Adding a trendline in Google Sheets is a nifty trick that can help you identify patterns in your data. It’s a simple process that involves creating a chart from your data and then adding a trendline to that chart. By following these steps, you’ll easily be able to see the general direction your data is moving in, whether it’s upwards, downwards, or staying steady. Ready to get started? Let’s dive in!

Step by Step Tutorial: Adding a Trendline in Google Sheets

Before we jump into the how-to, let’s quickly talk about what these steps will accomplish. By the end of this tutorial, you’ll have a chart that visually represents your data with a trendline that highlights the overall trend. This can help you make predictions or decisions based on your data.

Step 1: Select your data

Click and drag to highlight the cells with the data you want to analyze.

Selecting the right data is crucial for an accurate trendline. Ensure you’ve included all relevant data points, but exclude any headers or labels that might confuse Google Sheets.

Step 2: Insert a chart

Go to the ‘Insert’ menu and select ‘Chart’ to create a chart from your selected data.

Google Sheets will automatically choose a chart type for you, but you can change it later if it’s not what you want. The most common types of charts for trendlines are line, scatter, or column charts.

Step 3: Open Chart Editor

Click on the chart you’ve just created to open the Chart Editor, which appears on the right side of the screen.

The Chart Editor is where all the magic happens. You’ll use it to customize your chart and add the trendline.

Step 4: Add the trendline

In the ‘Series’ section of the Chart Editor, click on the three dots (more options) and select ‘Add Trendline.’

You can customize the trendline by changing its color, label, and line type. You can also choose whether you want to display the R-squared value, which indicates how well the trendline fits your data.

Step 5: Customize your trendline (optional)

Customize your trendline’s appearance and options according to your preferences and needs.

Feel free to play around with the customization options to create a trendline that represents your data in the best way possible.

After you complete these steps, you’ll have a clear visual representation of the trend in your data. This can be incredibly helpful in presentations, reports, or just for your own analysis. A trendline can reveal insights that might not be obvious from just looking at the raw numbers.

Tips for Adding a Trendline in Google Sheets

  • Make sure your data is organized and formatted correctly before creating a chart.
  • Use a scatter chart if your data is not evenly spaced or if you’re working with individual data points.
  • Experiment with different types of trendlines, such as linear, exponential, or polynomial, to see which one fits your data best.
  • Check the R-squared value to understand how closely the trendline matches your data.
  • Remember that trendlines are based on the current data, so they won’t predict future trends with 100% accuracy.

Frequently Asked Questions

Can I add a trendline to any type of chart?

No, trendlines can only be added to scatter, line, and column charts in Google Sheets.

What is the R-squared value?

The R-squared value measures how well the trendline fits your data, with 0 indicating no fit and 1 indicating a perfect fit.

Can I add multiple trendlines to the same chart?

Yes, you can add multiple trendlines if you have multiple data series in the same chart.

What if I don’t see the option to add a trendline?

Make sure you’ve selected the chart and are in the ‘Series’ section of the Chart Editor. If you’re still having trouble, your chart type might not support trendlines.

Can I use trendlines to predict future data?

Trendlines can give you a general idea of where your data might be heading, but they are not a guarantee of future results.


  1. Select your data
  2. Insert a chart
  3. Open Chart Editor
  4. Add the trendline
  5. Customize your trendline (optional)


Adding a trendline in Google Sheets can transform a simple spreadsheet into a powerful analytical tool. By following the steps outlined above, you’ll be able to visualize data trends and make more informed decisions. Whether you’re a student, business professional, or just someone who loves to crunch numbers, mastering trendlines will elevate your data analysis game.

Remember, the key to a useful trendline is good, clean data. Make sure your dataset is complete and well-organized before you start. And once your trendline is in place, use it wisely. It’s a handy guide, but it’s not a crystal ball. Always consider other factors and use your best judgment when making predictions or decisions based on trends.

So, go ahead and give it a try! Add a trendline to your next Google Sheets project and see what insights emerge. With a bit of practice, you’ll be a trendline pro in no time.

Join Our Free Newsletter

Featured guides and deals

You may opt out at any time. Read our Privacy Policy