As @zenvelo stated, it’s approximately 1600 nautical miles. How long it takes you to do that is a function of time (and seamanship, navigation, etc.). At 6 knots, and proceeding without stops 24 hours per day, it would take you 11 days plus a bit. At 12 knots, sailing 12 hours per day and stopping (anchoring, heaving to or simply drifting, if conditions allow) for 12 hours, then it will still take you 11 days plus a bit.
If I remember from my reading (since I haven’t sailed the Med yet), at different times of the year (and time of day – summertime mid-afternoons, I think) the sailing conditions there can get pretty hairy for awhile as winds from the north really crank up because of the local temperature differentials that build during the day.