You could do it through iCloud. You would need to create an iCloud account from one of your Apple devices, set that account up on all of them, and enable calendar syncing.
On your work PC, you would need to download the iCloud Control Panel from Apple
When you install that, it will ask you some questions about what information you wish to merge - Calendar, mail and contacts. Pick the ones you wish to sync with your Apple devices. Then, you simply enable the sync option in the finished, installed control panel. Note that in the conrol panel, the only option is to bulk sync mail/contacts/calendar - so it is important that you UNselect any of these you do not want sync'd during the installation step where you select data to merge.
Now, any changes you make to your Outlook calendar at work will get sync'd to your Apple device's calendars via iCloud.
Some people may mention the option of using Google Sync to sync up an Outlook calendar via a google account, but that option has been discontinued this month by Google (except for paying customers of google services).