How to Connect Outlook Calendar to Apple Calendar - The Complete 2026 Guide

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You can see and manage your Outlook calendar right inside the Apple Calendar app, on both your iPhone and your Mac. The main way to do it is to add your Outlook account to your Apple device, so your Outlook events show up next to your other calendars. This guide covers the steps on iPhone and Mac, how to choose which calendars show, whether changes sync both ways, how to add your Apple Calendar back into Outlook, and what to do when things are not syncing.

Quick note on wording. Adding your Outlook account to your iPhone or Mac makes your Outlook events appear in the Apple Calendar app, and on iPhone your edits sync both ways with Outlook (the Mac has some limits, which we explain below). It does not copy those events onto your iCloud calendar. If your goal is to combine separate accounts, for example to block your Outlook work time on your personal iCloud calendar, that is calendar syncing, which we cover near the end of this guide.

Which Outlook account type do you have?

Before you start, it helps to know which kind of Outlook account you have, because the steps differ slightly.

  • A personal account. Addresses that end in outlook.com, hotmail.com, or live.com. On Apple devices you add these using the Outlook.com option. A personal account does not need anyone's approval.
  • A work or school account (Microsoft 365). An address given to you by your company or school. On Apple devices you usually add these using the Microsoft Exchange option. Keep in mind that your IT administrator can block adding a work account to personal devices. If the steps below do not work on a work account, check with your admin, because a company policy may be stopping it.

How to add your Outlook calendar to Apple Calendar on iPhone

This adds your Outlook account to your iPhone, so your Outlook events show up in the built-in Apple Calendar app.

1. Open your Calendar accounts in Settings

Open the Settings app on your iPhone, tap Apps, tap Calendar, then tap Calendar Accounts. (On older versions of iOS, this is under Settings, then Calendar, then Accounts.)

Open Calendar Accounts in iPhone Settings

2. Add a new account

Tap Add Account, then choose your provider. Pick Outlook.com for a personal account, or Microsoft Exchange for a work or school account.

Choose Outlook.com or Microsoft Exchange on the Add Account screen

3. Sign in to your Outlook account

Enter your Outlook email address and password, and complete any two-step verification if you use it. Approve the request to let your iPhone access your account.

Sign in to your Outlook account on iPhone

4. Turn on Calendars and save

On the next screen, make sure the Calendars toggle is turned on. You can leave Mail, Contacts, and Reminders on or off as you like. Tap Save.

Turn on the Calendars toggle for your Outlook account

5. Open the Calendar app

Open the Apple Calendar app on your iPhone. Your Outlook events now appear alongside your other calendars. They are grouped under your Outlook account in the Calendars list.

Outlook calendars showing in the iPhone Calendar app

The steps on an iPad are the same. Open Settings, tap Apps, tap Calendar, tap Calendar Accounts, add your Outlook account, and turn on Calendars.

How to add your Outlook calendar to Apple Calendar on Mac

Your calendars do not carry over from your iPhone automatically, so you add the account once on your Mac too.

  1. Open the Apple menu and choose System Settings.
  2. Click Internet Accounts in the sidebar.
  3. Click Add Account, then choose Microsoft Exchange for a work or school account, or Outlook.com for a personal account.
  4. Sign in with your Outlook email and password.
  5. Make sure Calendars is turned on, then finish.
Add an Outlook account in Internet Accounts on Mac

Your Outlook events now show up in the Calendar app on your Mac. Because both devices connect to the same Outlook account, an event you add on one shows up on the other.

How to choose which Outlook calendars show

If your Outlook account has more than one calendar, you can pick which ones appear.

  • In the Calendar app on iPhone, tap the Calendars tab at the bottom, then tick or untick each Outlook calendar to show or hide it.
  • In the Calendar app on Mac, open the calendar list on the left and tick or untick each Outlook calendar.

If you added a Microsoft Exchange account, be aware that it often syncs only your main Outlook calendar to Apple Calendar. Extra calendars you created in Outlook may not appear at all. If you need those secondary calendars on your Apple devices, publish them as a link (see the section below on adding Apple Calendar to Outlook for how links work), or use a calendar sync app, which we cover at the end.

Does connecting Outlook to Apple Calendar sync both ways?

For the calendars you own, it is meant to be two-way. When you add your Outlook account, an event you create or change in the Apple Calendar app should update in Outlook, and a change in Outlook should update on your iPhone and Mac. Changes usually appear within a minute or two.

There is an important catch on the Mac. Many people find that the built-in connection behaves more like a view than a full sync, so events you create or edit in the Apple Calendar app on a Mac do not always push back to Outlook reliably. If two-way editing on your Mac matters to you, test it with a sample event first. If it does not push back, treat the Mac connection as view-only, or use a calendar sync app, which we cover at the end.

There is also one exception on every device. Calendars that were shared with you or that you subscribed to are usually read-only. You can see those events in Apple Calendar, but you cannot edit them there.

If you add a new event and want it to land on your Outlook calendar, make sure Outlook is set as your default calendar. On iPhone, go to Settings, tap Apps, tap Calendar, tap Default Calendar, and choose a calendar under your Outlook account.

How to add your Apple Calendar to Outlook

You can also go the other way and see your Apple (iCloud) calendar inside Outlook. Apple and Microsoft do not connect directly, so you share the iCloud calendar as a link and subscribe to it in Outlook.

  1. On your iPhone, open the Calendar app and tap the Calendars tab.
  2. Tap the info icon next to the iCloud calendar you want to share, turn on Public Calendar, and copy the share link.
  3. In Outlook on the web, click Add calendar, choose Subscribe from web, paste the link, and click Import.

The iCloud calendar then appears in Outlook as a read-only calendar. For the full steps, see our guides on how to share the iPhone Calendar and how to share an Outlook calendar.

Troubleshooting: Outlook calendar not showing in Apple Calendar

If your Outlook events are not appearing, run through these fixes.

  • The Calendars toggle is off. On iPhone, go to Settings, then Apps, then Calendar, then Calendar Accounts, tap your Outlook account, and make sure Calendars is turned on. On Mac, check the account under Internet Accounts.
  • The calendar is unchecked in the app. In the Calendar app, open the Calendars list and make sure the Outlook calendar has a tick next to it.
  • Only the main calendar syncs. Microsoft Exchange accounts often sync only your primary calendar. Extra Outlook calendars may need a published link or a sync app.
  • Sync is set to manual. On iPhone, go to Settings, then Apps, then Calendar, then Calendar Accounts, then Fetch New Data, and set it to Push or a shorter fetch time.
  • Update your software. Sync problems are sometimes fixed by updating to the latest version of iOS on your iPhone or macOS on your Mac.
  • A company policy is blocking it. On a work or school account, your IT administrator may block calendar sync on personal devices. If a work account will not connect, ask your admin whether a policy is stopping it.
  • Give it a little time, or re-add the account. New calendars can take a few minutes to appear. If nothing shows up, remove the Outlook account and add it again with a fresh connection.

How to sync Outlook and Apple Calendar across accounts

Adding your Outlook account to Apple Calendar works well for viewing your Outlook events on your Apple devices. It gets more limited when you live across several calendars.

Here is the gap. Adding an Outlook account only shows those Outlook events in the Apple Calendar app. It does not copy them onto your iCloud calendar, and it does not connect two separate accounts. So if you have an Outlook work account and a personal iCloud calendar, a meeting on one will not block the time on the other, and you can still get double-booked.

To truly keep separate calendars in step, the busy events need to exist on each one. That is calendar syncing, not just adding an account. A sync app copies your events from one calendar to the others, with the private details hidden if you want, so every calendar shows the same busy times and nothing can be booked over them.

This is exactly what a calendar sync app like OneCal does. It clones events between your Outlook, iCloud, and Google calendars in real-time, so your availability is always correct on every calendar and account, and you never get double-booked.

Tools like OneCal are the easiest way to keep more than one account in step. If you keep a Google account on your iPhone too, see our guide on how to sync Google Calendar with iPhone. If you also pair Google with Outlook, read how to sync Google and Outlook calendars, or browse our roundup of the best calendar synchronization apps.

Frequently asked questions

How do I add my Outlook calendar to my iPhone?

Open Settings, tap Apps, tap Calendar, tap Calendar Accounts, tap Add Account, and choose Outlook.com or Microsoft Exchange. Sign in, make sure the Calendars toggle is on, and tap Save. Your Outlook events then appear in the Apple Calendar app.

How do I add my Outlook calendar to Apple Calendar on my Mac?

Open the Apple menu, choose System Settings, click Internet Accounts, click Add Account, and choose Microsoft Exchange or Outlook.com. Sign in and make sure Calendars is turned on.

Why is my Outlook calendar not showing up in Apple Calendar?

The most common reasons are that the Calendars toggle is off for the account, the calendar is unchecked in the Calendar app, or you added a Microsoft Exchange account that only syncs your main calendar. See the troubleshooting section above for the full checklist.

Does connecting Outlook to Apple Calendar sync both ways?

Yes, for calendars you own. Edits you make in Apple Calendar sync back to Outlook, and changes in Outlook appear on your Apple devices. Calendars that were shared with you or that you subscribed to are read-only.

Can I add my Apple Calendar to Outlook?

Yes, but not directly. Publish your iCloud calendar as a link, then subscribe to that link in Outlook using Subscribe from web. The calendar shows up in Outlook as read-only.

Can I sync my Outlook and iCloud calendars so they block each other?

Adding accounts only shows each set of events in the other app. It does not make separate accounts share the same availability. To do that, you need a calendar sync app that copies events between them.