How to Merge Calendars in Outlook?

Open Outlook

Go to the Calendar view

Select the calendar you want to merge from

Open the second calendar you want to combine with

Use the View tab

Choose Overlay View

Drag events from one calendar to the other if needed

Copy appointments from one calendar and paste them into the target calendar

Use the Share Calendar option if you need to merge calendars across accounts

Export one calendar to a file if needed

Import the file into the target calendar

Repeat for any additional calendars

Verify all events are in the merged calendar