* Bachelor's degree: Typically requires 3-4 years of full-time study.
* Associate's degree: Typically requires 2 years of full-time study.
* Master's degree: Typically requires 1-2 years of full-time study after a bachelor's degree.
* Doctoral degree (PhD): Typically requires 4-7 years of full-time study after a bachelor's degree. This can vary widely depending on the field of study.
These are general guidelines, and the actual time may be longer or shorter depending on the individual's pace, the institution's requirements, and other factors.