However, most people spend between one and three months studying a few hours a week for GRE. This means that the number of studies for GRE could range from approximately eight hours (studying two hours a week for four weeks) to 120 hours (studying ten hours a week for 12 weeks). Taking into account all the points we have mentioned, the GRE preparation will take between 4 and 20 weeks. If you include the mock tests you would have to perform, the preparation time can range from a minimum of 6 weeks to a maximum of 24 weeks.
This answer depends on your goal scores and how far you are from those scores. In any case, you should not spend less than 2 weeks studying for the GRE and you are likely to achieve diminishing returns after 6 months of study. Ideally, you should spend 1 month to 5 months studying. Taking into account all the points mentioned above, the GRE preparation time would be four to ten weeks.
And if you include all practice sets and mock tests, it can take anywhere from six to twenty-four weeks. However, few people like to learn slowly and spend three months studying for a few hours a day. If you work with math on a daily basis, you'll likely need less preparation in that area, which can reduce the amount of time you need to efficiently prepare for GRE. Before you start preparing for GRE, you should review the GRE curriculum, target score, and limit of the different universities.
To be fully prepared, sit down with a coach to review your performance on practice tests and make a smart plan to meet your GRE score goal. Factors that change the time you need to fully prepare for GRE include the GRE test scores you need for your target graduate schools, how long you've been out of school, how much you read, your language skills, your experience with standardized tests, and more.