You can only create new calendars from a browser and not from the Google Calendar app. Once the calendar is created, you can find it on your browser and in the app.

1. On your computer, open Google Calendar.
2. On the left, next to “Other calendars,” click Add other calendars   Create new calendar.
3. Add a name and description for your calendar.
4. Click Create calendar.
5. In the top right, click Settings   Settings.
6. On the left side of the screen, click the name of the calendar you want to embed.
7. In the “Integrate calendar” section, copy the iframe code displayed.
8. Under the embed code, click Customize.
9. Choose your options, then copy the HTML code displayed.