Sync Microsoft Exchange Calendar to Google Calendar

Have a look at this http://support.google.com/a/bin/answer.py?hl=en&answer=2716936 I use it to sync my Outlook (non-exchange) calendar with Gmail which then syncs with my iPhone.

I’ve not tested it with an Exchange calendar but see no reason as to why it won’t work for you.

Is this something you were thinking of?

I've used Google sync in the past. You install it locally on the desktop and it syncs from Outlook to GCalendar. Unfortunately it has been discontinued and is no longer available.

There are some third-party apps (like Sync2) that are out there but I have not used them. There doesn't seem to be a great free option right now with Google sync going away.

This program here seems (on initial testing) to work for me from Exchange to Google Calendar:

http://www.pppindia.com/calendar-sync/index.html

It is limited to syncing within a 30 day range, but as this is so I can see my current meeting schedule on my phone this works fine for me. It allows you to select from your available outlook & google calendars to pick which ones you want to sync, along with which calendar should act as the "master" calendar.

There is a free version with basic sync facilities and a paid for pro version that offers more sophisticated sync rules.