When you change Google accounts, you can set your old Gmail account to automatically forward emails to your new account, but you must manually transfer over the content from each of your individual Google Apps into your new account's apps. Google Calendar enables you to quickly export all of your old account's data, and then import the existing calendars into your new account's calendar app.

Exporting a Calendar

Step 1

Log in to the Google account that has the calendar you'd like to export, click the unlabeled Apps icon on the Google home page -- the icon has nine squares in three rows of three -- and then select "Calendar."

Step 2

Expand the "My Calendars" section, if necessary, by clicking the down arrow that displays when you hover your cursor over the tab title.

Step 3

Hover your cursor over the calendar you'd like to export, click the down arrow that displays in its tab, and then select "Calendar Settings" from the pop-up menu.

Step 4

Click the "ICAL" icon in the Private Address section of your settings page, and then click the link in the pop-up dialog box. Download the file to your hard drive, and then click the "OK" button to close the pop-up box.

Importing a Calendar

Step 1

Click your username or profile photo in your first calendar's home page, and then click "Add Account" in the drop-down menu.

Step 2

Log in to the second Google account into which you'd like to import your calendar. The page automatically redirects to your second account's calendar application.

Step 3

Click the gear icon in your second account's calendar page, select "Settings" from the drop-down menu, and then click "Calendars" in the main menu.

Step 4

Click "Import calendars," and then click the "Choose File" button in the pop-up box that launches.

Step 5

Locate the exported calendar file on your hard drive, and then double-click the file to upload it to Google. Click the "Import" button. A pop-up box shows up if your import was successful; click the "Close" button to close the box and return to your new calendar's settings page.