The Advocates' 10-question quiz is a simple but low-precision way to measure how libertarian one is. Here is a more comprehensive 20-question quiz that covers most of the LP platform: http://libertarianmajority.net/. I seriously doubt that anybody here would not land firmly in the libertarian quadrant.
Of course, quizzes like these are misleading to the extent they suggest there is always a most optimally libertarian answer to every policy question. In fact, there are significant differences on principle among the major schools of libertarianism, and indeed