* Bachelor's Degree (Undergraduate): Typically takes 4 years.
* Master's Degree: Varies widely depending on the specific program, but often takes 1-2 years. Some may be longer.
* Doctoral Degree (PhD): Can take 5-7 years or even longer, depending on the field of study and individual progress.
* Professional Degrees (e.g., Law, Medicine, Business): These also have varying lengths. A JD (law degree) typically takes 3 years, an MD (medical degree) is around 4 years (plus residency), and an MBA (business) is typically 2 years.
So, there's no single answer to "how long do you learn at Harvard?" It depends entirely on the chosen program.