Now, Gmail on your computer has a special button that tells you how much space you're using!
You can see it by clicking your picture in the top corner, and it looks like a little pill.
It shows you how much space you have left, and you can even click on it to see more details!
This new button is also coming to some other Google apps, like Docs, Sheets, and Slides, so you can keep track of your space everywhere!