How to Sync Your Outlook Calendar to Your Google Calendar

The Gist

If you're trying to manually check both your work calendar in Outlook and your personal calendar in Google, you're going to get double-booked. Here’s how to connect them:

Subscribe to your Outlook calendar (View-Only). This is a good way to see your work events on your personal phone. You can get a link from your Outlook calendar and add it to your Google Calendar. But be aware that the updates can be delayed by up to 24 hours.
Import/Export (One-Time Only). This is only useful if you're permanently moving from Outlook to Google. It does not keep your calendars in sync.
Use a sync tool like Caltsu (The Real Fix). This is the best option for actually blocking off your busy time. It syncs your availability instantly, protects your privacy, and works both ways.

You have your work schedule in Outlook. You have your personal life in Google Calendar. And right now, you're stuck flipping between two apps to figure out if you're free for a dentist appointment or a last-minute team meeting.

It’s annoying, but more importantly, it's risky.

When you don't sync your Outlook calendar to Google, you create blind spots. You accept a dinner invitation for Tuesday at 7 PM because your Google Calendar looked clear, completely forgetting about that late client call in Outlook.

This guide will show you three ways to solve this problem, from the free built-in features to an automated tool that actually protects your privacy.

Why Would You Need to Sync from Outlook to Google?

Most people who need to do this fall into one of two categories:

The Viewer: You just want to see your work schedule on your personal phone's calendar widget. You don't need to edit the work events; you just need to know where you're supposed to be.
The Blocker: You need your Outlook events to actually block off time on your Google Calendar so your friends, family, or scheduling links don't book over your work commitments.

If you're a "Viewer," the first option below will work for you. If you're a "Blocker," you should skip straight to the third option.

This is the standard, free method. It creates a one-way window where you can see your Outlook events inside your Google Calendar. You can't edit them, and Google won't treat that time as "busy" for any scheduling links you might use.

Warning: Google Calendar is slow to refresh these "subscribed" calendars. Sometimes it can take up to 24 hours for a new Outlook meeting to show up on your Google Calendar. If your schedule changes quickly, this might be too slow for you.

Step 1: Get the Link from Outlook

It's best to do this from the web version of Outlook, as the desktop app's menus can change.

Open Outlook on the Web and click the Calendar icon.
Click the Gear icon (Settings) in the top right.
Go to Calendar > Shared calendars.
Under "Publish a calendar," choose the calendar you want to share (usually just called "Calendar").
Choose your permissions. Select Can view all details if you want to see the names of your meetings, or Can view when I'm busy if you want more privacy.
Click Publish.
Two links will appear. Copy the ICS link (not the HTML one).

Step 2: Add the Link to Google Calendar

Open Google Calendar on your computer.
In the left sidebar, find "Other calendars" and click the + button.
Choose From URL.
Paste the ICS link you copied from Outlook.
Click Add calendar.

That’s it. Your Outlook events should now appear in a different color in your Google Calendar. You can show or hide them, but you can't edit them from Google.

Option 2: Export from Outlook and Import to Google (One-Time Only)

You probably shouldn't use this method for your day-to-day schedule.

Exporting and importing your calendar only creates a static snapshot, like taking a picture of your schedule. If you add a new meeting to Outlook five minutes after you do the import, that new meeting will not show up in Google.

You should only use this method if you're permanently moving away from Outlook and want to bring your old appointments with you.

Option 3: Use a Real-Time, Two-Way Sync with Caltsu

The free options above have two big flaws: privacy and availability.

When you share your Outlook calendar with a link, you often have to choose between sharing everything (meeting titles, notes, and attendees) or almost nothing. And more importantly, those events don't actually block off your availability. If you use a scheduling tool on your Google Calendar, it will still see those Outlook times as "free."

This is how you get double-booked, even when you think you have everything in one place.

A tool like Caltsu fixes this by creating actual copies of your events that act as placeholders.

How to set it up:

Sign up for Caltsu (it takes about 30 seconds).
Connect both of your accounts. Add your Microsoft (Outlook) account and your Google account.
Create a sync. Tell Caltsu to sync from your Outlook calendar to your Google calendar.
Choose your privacy settings. We recommend setting it to sync as "Busy" with a title like "Work Event." This will keep your specific meeting details private but will make sure that the time is blocked off on your personal calendar.

Why this is a better way to sync:

It's fast. Unlike the 24-hour lag with the free subscription method, Caltsu updates in near real-time.
It actually blocks your time. Because Caltsu creates a real event on your Google Calendar, other apps will see you as busy.
It's private. Your spouse will just see "Work Event" instead of "Performance Review with HR."

What Gets Synced (and What Doesn't)

Here's a quick breakdown of what information gets transferred with each method.

With a Subscription (Option 1):

Time & Date: Yes.
Event Title: Yes (if you allow it).
Reminders: No. Google won't send you a notification for an Outlook event.
Availability: No. These events do not mark you as "busy" to other scheduling tools.

With Caltsu (Option 3):

Time & Date: Yes.
Availability: Yes. These are real events that block off your time.
Privacy Controls: Yes. You can control the title and what information is shared.
Reminders: Yes. Since it's a real event, you can set Google to remind you 10 minutes before it starts.

What's Next?

If you just want to casually check your work schedule once in a while, the free URL subscription method is probably good enough. It’s a little clunky and slow, but it works.

However, if you're missing meetings, getting double-booked, or just tired of managing two separate lives, you need a tool that can actively manage your availability for you.

Don't let a "free" slot on your calendar cause you a professional headache.

Ready to fix your schedule? Try Caltsu for free and get your Outlook and Google calendars talking to each other in less than two minutes.

How to Sync Google Calendar from Outlook: Easy Guide