http://www.hebcal.com/converter/
The current year is 5765 (number of years after creation).
It does date from creation? Now that I hadn't realized ... though I had some Jewish boys I used to babysit school me on the calendar once and did have some general idea what year it was.
This is bad news ... I'm apparently either 3,760 years ahead or behind in my rent. I hope my landlord isn't a Freeper.