Welcome to Android Central! As mentioned above, if you've entered your calendar events into your Google account on the phone's Calendar app, you can go to calendar.google.com on your computer browser and see the events there as well. But if you entered the events into the local Phone account or your Samsung account, it may be trickier. See if there's an option in the calendar app to Export your calendar events to a .csv file. You can then copy that .csv file to your computer and import it into the calendar program you use on it (e.g., Outlook or Mail and Calendar).