Open Google Calendar: Go to calendar.google.com and sign in with your Google account if you haven't already.
Create or Edit an Event: Click on the "+" button or select an existing event to edit.
Enter Event Details:
In the event creation or editing window, you'll see a field labeled "Location." Click on this field to enter the location or address of the event.
Start typing the name of the location or address. Google Calendar will suggest matching locations from Google Maps. You can select one of the suggestions or enter the complete address manually.
Save the Event: Once you've entered the location or address, complete any other event details as needed (such as date, time, description, etc.). Then, click "Save" to save the event.
View the Location: After saving the event, the location or address you entered will be displayed in the event details. You can click on the location to view it on Google Maps.