The average pre-medical student spends 300 hours studying for the MCAT! That may sound like a lot of hours, but the MCAT is a difficult test and requires thorough preparation. For students studying part-time during the school year (15-20 hours per week), this can be completed over a period of 4-6 months. For students studying full-time over the summer (30-40 hours per week), this can be done in 2-3 months.