Adding your Outlook Calendar to your Google Calendar means you'll only have one place to look to keep up with all your upcoming events. If you're constantly flipping back and forth between your Outlook Calendar for work tasks and events and your Google Calendar for personal organization, there's no need!
For people with schedules that don't change much once they're set, you can export your Outlook Calendar at regular intervals to your Google Calendar. Or, if you're looking for something that'll sync your calendars for you, a third-party tool (or even the Outlook mobile app) might be your best bet.
