The AP Precalculus exam is 3 hours long in total.

Here’s the quick breakdown so you can picture test day:

  • Total duration: 3 hours.
  • Section I – Multiple Choice:
    • 40 questions in 2 hours.
* Part A: 28 questions, 80 minutes, **no calculator**.

* Part B: 12 questions, 40 minutes, **graphing calculator required**.
  • Section II – Free Response:
    • 4 questions in 1 hour.
* Part A: 2 questions, 30 minutes, **calculator allowed**.

* Part B: 2 questions, 30 minutes, **no calculator**.

So if you’re planning your stamina: expect a straight 3‑hour sit with a long multiple‑choice block first, then a shorter free‑response block at the end.

Information gathered from public forums or data available on the internet and portrayed here.