1. Associate degree: This typically takes two years of full-time study.
2. Bachelor's degree: A bachelor's degree usually takes four years of full-time study. However, some programs may require additional time, such as five years for engineering or architecture degrees.
3. Master's degree: A master's degree typically requires one to two years of full-time study beyond a bachelor's degree.
4. Doctoral degree: A doctoral degree, such as a Ph.D., typically takes four to eight years of full-time study beyond a bachelor's degree.
Please note that these timelines are approximate and may vary depending on the specific program, institution, and individual student's pace of study. Additionally, some degrees, such as medical degrees, may require additional years of training and residency before the degree is fully conferred.