AP bio score calculator
Estimate your AP Biology exam score from multiple-choice and free-response practice points. Uses the standard 50% MCQ / 50% FRQ weighting with two long and four short FRQs.
FAQ for this calculator
- How is AP Biology scored?
- Section I has 60 multiple-choice questions (50%). Section II has six FRQs—two long (10 pts each) and four short (4 pts each)—worth 50%. Raw scores are weighted and combined into a composite mapped to AP scores 1–5.
- Are these cutoffs official?
- No. College Board equates each year separately. The bands here (72/58/42/28) match common prep-calculator estimates—use them for planning, not guarantees.
- Why 50/50 weighting?
- College Board publishes equal section weights for AP Biology. This calculator scales MCQ (out of 60) and FRQ (out of 36) each to half of the composite percentage.
- Can I leave sections blank?
- Yes—blank fields count as zero so you can model MCQ-only practice or partial mocks.
How to use the AP bio score calculator
The AP Biology exam combines 60 multiple-choice questions with six free-response questions, each section worth 50% of the composite score.
- Enter how many MCQ items you answered correctly (0–60).
- Add rubric points for two long FRQs (0–10 each).
- Enter four short FRQ scores (0–4 each).
- Tap Calculate AP score to see the weighted composite and estimated 1–5 score.
When to use this calculator
- After a full-length practice test with rubric-graded FRQs.
- Seeing whether improving long FRQs moves your composite more than extra MCQ points.
- Setting MCQ targets once you know typical FRQ performance from class.
Examples & walkthrough
- 45 MCQ, long FRQs 8+7, short FRQs 3+3+3+3 → composite about 75.8% → estimated AP score 5.
- 37 MCQ, long 6+6, short 2+2+2+2 → composite about 58.6% → estimated AP score 4.
- 28 MCQ, long 5+4, short 2+1+2+1 → composite about 41.7% → estimated AP score 3.