FRQ Review
Free AI grader

AP Calculus BC FRQ Grader

Series, parametric, polar — plus everything from AB.

The AP Calculus BC exam covers everything in AB plus series, parametric, polar, and vector functions. Upload any Calc BC FRQ and the AI scores it point-by-point against the rubric in about fifteen seconds.

How it works

From prompt to feedback in four steps.

  1. 1

    Paste the prompt — any free-response question from a teacher, prep book, or practice set.

  2. 2

    Choose a rubric — bring your own or let the AI auto-generate one from the prompt.

  3. 3

    Upload your response — a photo of handwritten work or typed text both work.

  4. 4

    Get scored in ~15 seconds — point-by-point feedback you can actually learn from.

What we grade

Every Calc BC free-response type.

  • Series FRQ (Taylor, Maclaurin, convergence tests)
  • Parametric / polar / vector FRQ
  • Particle motion FRQ
  • Differential equation FRQ

AP Calc BC rubrics give credit for correct setup, correct answer, and correct units. The AI checks all three, including for series convergence justifications.

Questions

FAQ

Is the AP Calculus BC FRQ grader free?

Yes. Basic is free forever and ad-supported — grade as many FRQs as you want without an account. Plus is $3.99/month and removes ads, speeds up grading, and saves unlimited history.

How accurate is the AI on AP Calculus BC free-response questions?

Calc BC rubrics demand precise justifications, which the AI catches. Rev (the AI grader) follows the rubric you provide point-by-point and explains where each point landed. It is not the College Board, but students consistently report scores within 1 point of teacher grades.

Can I use my own rubric?

Yes — paste in your teacher’s rubric, the official scoring guidelines, or anything else. Or skip it and the AI will generate a defensible rubric from the prompt itself.

Do I need to type my response?

No. Take a photo of your handwritten response and upload it. Rev reads handwriting and grades against the rubric. Typed responses also work.

Is FRQ Review affiliated with the College Board?

No. AP® and Advanced Placement® are trademarks registered by the College Board. FRQ Review is a student-built practice tool and is not affiliated with, endorsed by, or sponsored by the College Board.

Other AP subjects

Grade any AP free-response with the same free AI grader.

Ready to grade your Calc BC FRQ?

No account, no credit card — just upload and go.

AP® and Advanced Placement® are trademarks registered by the College Board. FRQ Review is not affiliated with, endorsed by, or sponsored by the College Board. All practice content is student-submitted and graded for learning purposes only.