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Phys C E&M · Calculator

AP Physics C: E&M score calculator.

Enter how many multiple-choice questions you got right and your three free-response scores. We turn that into a predicted 1 to 5 using estimated cut scores, and show the composite points behind it.

AP Score Calculator
Free · No signup · Updated 2026
AP Subject Locked
MCQ — correct answers / 35
35 questions · 1.43× weight per correct
Free-response sections
Curves are reasonable estimates. Your actual score is set by the College Board.
Your predicted score Phys C E&M
Awaiting your scores.
Enter MCQ and FRQ values on the left, then press Calculate.
About this calculator

Tuned for AP Physics C: E&M.

The Electricity and Magnetism exam, the second half of AP Physics C, splits evenly between 35 multiple-choice questions and three free-response problems. This AP Physics C E&M score calculator mirrors that 50/50 weighting and uses estimated cut scores modeled from recent exams.

Step 1
Count MCQ correct
Out of 35 questions. Each one you get right pushes the multiple-choice half of your score higher.
Step 2
Estimate FRQ scores
Three free-response problems, scored out of 15 points each. Use the official rubric to estimate.
Step 3
Press Calculate
We map your composite, out of 100, to a 1 to 5. You will usually need about 68 for a 5.

Frequently asked questions

Quick answers — written by humans, not a chatbot.

Is this the same format as Physics C: Mechanics?

Yes. Both Physics C exams have 35 multiple-choice questions and three free-response problems, weighted evenly. The content differs, electricity and magnetism here versus mechanics there, but the scoring shape is identical.

Why does Physics C have a forgiving curve?

A small, well-prepared group takes the calculus-based exam, and the questions are demanding, so the raw percentage needed for each score often runs lower than students expect. Treat the result as an estimate.

Should I count partial credit on the free response?

Yes. Each problem is graded point by point against the rubric, so add up the points you would realistically earn instead of scoring a problem all or nothing.

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