How to Migrate Google Calendar to Office 365? Complete Guide

  Tej Pratap Shukla
Written By Tej Pratap Shukla
Anuraag Singh
Approved By Anuraag Singh
Modified On March 17th, 2026
Reading Time 6 Min Read

Migrating Google Calendar to Office 365 is not a hard job. As there are easy manual methods, a user can move their Google Workspace calendars to Microsoft 365 and easily manage calendar events and meeting schedules. Thus, in this, I am going to explain the methods to transfer Google Calendar to Microsoft 365 with proper steps.

Reasons to Migrate Google Calendar to Office 365

  • Microsoft 365 has a more centralized ecosystem than the Google Workspace, as they have their own native apps like Outlook and Teams, which make it easier to use for collaboration.
  • The Outlook calendar provides advanced scheduling features like Scheduling Assistant, Room and resource booking, Automatic meeting suggestions, and Shared calendar permissions with detailed control. These functions manage large team meetings.
  • Some organizations want all their communications data in one platform for centralized administration.
  • For enterprise, Microsoft 365 provides A-grade security features as a security.
  • Some users heavily rely on the Outlook Desktop to manage the calendar. So, they want their Google Calendar data in Microsoft 365.
  • When a company wants to switch to the Microsoft platform, they also have to transfer its calendar data.

These are the common reasons why migrate G Suite Calendars to Office 365. Now, to move them, there are several methods that you can use.

Manually Export Google Calendar to Outlook 365

Individual users can easily move Google Workspace Calendar to Office 365 by exporting it as an ICS file and import them to the Microsoft 365 platform. It is simple, but you have to individually save each calendar for multiple transfers.

  1. First, you have to log in to your Gmail account and choose the option ‘Calendar’ from the right panel.
  2. Open the Google Calendar in a new tab. Go to the My Calendars and choose the calendars that you want to migrate.
  3. Click on the three dots button next to your chosen calendar.
  4. Choose Settings and then the Export Calendar button.
    Export calendar
  5. Your calendar will download in ZIP format to move it to Microsoft, and then extract it.
  6. Sign in to the Outlook Web App or the desktop version. Open the Calendar application.
    Select Calendar Option
  7. Choose Add Calendar and the upload from File button.
  8. Browse your calendar file and import it into Outlook.

Your calendar will be migrated, but it will not transfer the sharing permissions, and it can be time-consuming when you individually move your calendars.

Subscribe to Google Calendar in Outlook

This method does not migrate Google Calendar to Office 365, but it allows you to view the calendar. Here, I am going to subscribe my Google Calendar to Outlook web or desktop version.

  1. In your Google Calendar account, go to “My Calendars“.
  2. Select your calendar and click (⋮).
    my-calendar
  3. Choose “Settings and sharing,” scroll down to “Integrate Calendar.
  4. Find the “Secret address in iCal format” box. Click the “Copy To Clipboard” button.
    copy-to-clipboard
  5. Switch to your Outlook Web or desktop. Go to your Calendar option.
  6. On the left, under the calendar grid, click “Add calendar” and then select “Subscribe from web.subscribe from web
  7. Paste the URL you copied into the address bar, and click “Import” to migrate Google Calendar to Office 365.

Remember, this is not a migration method. It is a way to view your calendar. If you want to permanently transfer your complete Google Calendar to Microsoft 365. Follow the next method.

Professional Method to Migrate G Suite Calendar to Office 365

The manual methods work for individual users for small migrations, but organizations need bulk transfer. Therefore, users can use a trusted professional tool like the SysTools G Suite to Office 365 Migration Tool to move the calendar events. This reliable software is perfect for a complete migration of your data, including the calendar, with proper permission. However, to use it, you need proper admin credentials.

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Step-by-Step Process of Software

  1. Download the tool on your computer and launch it. Choose G Suite as the source platform and Office 365 as the Destination.
    enter source and destination users
  2. Select the Calendar Workload selection. Apply date filter.
  3. In the source tab, enter the Admin Email and Service Account details for G Suite. Then, upload the Certificate File. Click on the Validate button.
    provide details
  4. Provide the destination Office 365 admin credentials (Admin Email and Application ID) to log in to the software. Click on the validate button. Click on Next.
    Office 365 as destination
  5. Add user accounts by either Fetch Users Automatically and manually importing them.
    users
  6. Once you have added the user account, click on the validate button and then start migration.
    Begin Migration

Related: Know How to Migrate Google Contacts to Office 365

Let’s Wrap Up

It is not a hard job to migrate Google Calendar to Office 365. Therefore, I have provided simple ways to move your calendar easily. Manually, you can export your Google Calendar to an ICS file and then import it to Outlook or subscribe to the Google Calendar in Outlook. However, these methods may cause you problems. Most professionals or admins use professional software to move the data to securely transfer the calendar data in a quick manner.

Most Asked Questions

Q. How do I transfer my Google Calendar to another account?
Ans. You can move your Google Calendar by transferring the ownership. Select your Calendar, choose Settings, and Sharing. Add people and share with specific users or all. Other than that, you can download your calendar and import it to another account. These two are simple ways to migrate your Google Workspace calendar.

Q. How can I migrate from Gmail Calendars to Outlook 365?
Ans. It is simple to transfer your Gmail to Office 365 by going through the Calendar section of Gmail. Download your calendar in an ICS file and import it to either the Outlook Web or the desktop version.

Q. How can I sync Google and Microsoft calendars?
Ans. By subscribing to the Google Calendar in Outlook, you can read the calendar events. For this, go to the Google Calendar settings, choose the specific calendar. Integrate your calendar and copy the secret address in iCal format. Paste this in the Outlook Web or desktop version.