Sharing your Outlook calendar with a colleague means they can check your availability before scheduling meetings, see what you have on your plate, and stop asking "are you free Thursday?" Sharing with someone on your team means no more double-booking or missed handoffs.

This guide covers how to share your Outlook calendar in every version of the app, what permission levels mean in practice, and how to handle sharing with people outside your organization.

Key Takeaways

• You can share your calendar with anyone in your organization directly from Outlook. They will see your free/busy status by default

• Sharing with external users requires them to receive a sharing invitation link. Full event detail access requires you to explicitly grant it

• Permission levels control exactly what the other person can see and do. "Can view all details" is not the same as "Can edit"

How to Share Your Calendar in New Outlook or Outlook on the Web

Open Outlook and click the Calendar icon in the left navigation bar. Right-click your calendar in the left sidebar and select Sharing and permissions. A panel opens on the right side of the screen.

In the search box, type the name or email of the person you want to share with. Select them from the results. Choose a permission level from the dropdown next to their name. Click Share.

The person receives an email with a link to view your calendar. Once they click it, your calendar appears in their sidebar under "People's Calendars." They do not need to do anything else.

You can also access the sharing panel from the calendar view by clicking the three-dot menu next to your calendar name and selecting Sharing and permissions.

How to Share Your Calendar in Classic Outlook Desktop

The classic desktop app uses the ribbon interface instead of the right-click menu.

1. Click the Calendar icon in the navigation bar at the bottom left

2. On the Home tab, click Share Calendar in the Share group

3. A new email window opens with a calendar sharing request pre-filled

4. In the To field, add the person's name or email

5. Choose the permission level from the Details dropdown

6. Optionally check Request permission to view recipient's Calendar if you want them to share back

7. Click Send

The recipient receives an email. When they click Open this Calendar, it appears in their Outlook sidebar.

Alternatively, right-click your calendar in the folder pane and choose Properties > Permissions to manage sharing settings directly without sending an email.

Understanding Calendar Permission Levels

The permission level you choose controls exactly what the other person can see and do. Picking the wrong level is the most common mistake when setting up calendar sharing.

• Can view when I'm busy: The default. They see colored blocks showing you are occupied but no event titles, locations, or attendees. Good for people who just need to know your availability

• Can view titles and locations: They see event subjects and locations but not attendee lists or notes. Good for close colleagues who need context without full access

• Can view all details: Full read access. They see everything you see, including private notes and attendees. Use this for direct reports, executive assistants, or partners who need complete visibility

• Can edit: They can create, modify, and delete events on your calendar. This is delegate-level access, typically used for assistants scheduling on someone's behalf

If someone tells you they can only see blank busy blocks when they expected full details, the issue is almost certainly the permission level. Update it from your sharing settings and they will see the change immediately.

For a full walkthrough of what happens on the recipient's side, including how to view overlay mode, see the guide to viewing someone's calendar in Outlook.

How to Share Your Calendar with External Users

Sharing with someone outside your organization (a client, contractor, or partner at a different company) works differently. Your organization's IT policies may restrict this, so if the option is grayed out, contact your IT admin.

When you add an external email address in the sharing panel, Outlook sends them a link rather than adding the calendar directly. They receive an email with a button to accept the sharing. If they use Outlook or Microsoft 365, clicking it adds your calendar to their account. If they use Gmail or another provider, they may need to copy the ICS link and subscribe manually.

External users can only see what you allow based on the permission level you set. The default is "Can view when I'm busy." You can increase this to full details if needed.

Note: external sharing via Outlook is one-way by default. They see your calendar, but you do not automatically see theirs unless they share back separately.

Manage and Remove Calendar Sharing

To see everyone who has access to your calendar, right-click your calendar and open Sharing and permissions. The panel shows all current shares with their permission levels.

To change someone's permission level, click the dropdown next to their name and select the new level. Changes take effect immediately.

To remove someone's access, click the X or trash icon next to their name. Their access is revoked immediately and your calendar disappears from their sidebar.

For team-level calendar sharing where an entire channel should see shared events, the Teams Calendar guide covers channel calendars, which work alongside your personal Outlook calendar for broader visibility.

Best Tool for Planning Across a Shared Calendar Setup

Sharing your calendar gives colleagues visibility. It does not give you a plan for what to do with your own time once they can see it.

Lifestack connects to your Outlook calendar and builds a daily schedule that accounts for your energy level, not just the open slots around your meetings. It reads your shared calendar, task list, and recovery data from Apple Health or Oura, then gives you a prioritized to-do list sequenced around your highest-focus hours. Rather than staring at a shared calendar grid and deciding what fits, you get a plan built for the specific day you are actually having.

Lifestack is $9.99/month or $49.99/year with a 7-day free trial. If you are building out your Outlook calendar setup, the guide to adding calendars in Outlook and the guide to sending calendar invites cover the other parts of the workflow. For sync issues on iPhone, the iPhone calendar not syncing with Outlook guide has all the fixes.

Frequently Asked Questions

Can I share my Outlook calendar with someone who uses Gmail?

Yes, but with limitations. Send the sharing invitation to their Gmail address. They will receive a link to add your calendar. Gmail users can subscribe to your calendar as an ICS feed for read-only access. Two-way full editing is not possible between Outlook and Gmail accounts. If someone shares a Google Calendar back with you, you can add it to Outlook via the subscribe-from-URL feature covered in the adding calendars in Outlook guide.

How do I share my Outlook calendar from my iPhone?

You cannot share your Outlook calendar directly from the Outlook iPhone app. Sharing has to be set up through Outlook on the web or the desktop app. Once set up, the shared access reflects on both desktop and mobile automatically. If your Outlook calendar is not appearing correctly on your iPhone after sharing, the troubleshooting steps in the iPhone calendar not syncing with Outlook guide can help.

Can I share a specific calendar rather than my entire Outlook calendar?

Yes. Outlook lets you share individual calendars. If you have created multiple calendars (work, personal, a project calendar), you can share each one with different people at different permission levels. Right-click the specific calendar you want to share and choose Sharing and permissions to control access independently for each one.

How do I know if someone can see my Outlook calendar?

Open the Sharing and permissions panel for your calendar (right-click the calendar and select the option). Anyone listed there with an active share can see your calendar at whatever permission level is shown. If you see someone listed that you do not recognize, you can remove them immediately.

What is the difference between sharing a calendar and setting up a delegate in Outlook?

Sharing grants view (or edit) access to your calendar. A delegate goes further: they can receive meeting requests sent to you, accept or decline meetings on your behalf, and manage your inbox tasks related to scheduling. Delegates are typically used by executive assistants. You set up delegates in Outlook under File > Account Settings > Delegate Access.