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AP Biology Score Calculator

Updated for 2025 examMatches College Board scoring formulaReviewed by AP educators
Enter Your AP Bio ScoresFree · Instant

Section I: Multiple Choice (60 questions)

Section II: Free Response

Long FRQ: 2 questions, 10 pts each

Short FRQ: 4 questions, 4 pts each

How AP Biology Scoring Works

The AP Biology exam is divided into two equal sections, each worth 50% of your total composite score.

MC Score = (Correct / 60) × 50
FRQ Score = (Raw FRQ / 36) × 50
Composite = MC Score + FRQ Score (out of 100)
  • Section I (MC): 60 multiple-choice questions. Your score = (correct / 60) × 50.
  • Section II (FRQ): 2 long FRQs (10 pts each) + 4 short FRQs (4 pts each) = 36 raw points. Score = (raw / 36) × 50.
  • Composite: Add both weighted sections for a score out of 100, then map to a 1–5 AP score.

Who Is This Calculator For?

📚
AP Bio Students
Check your predicted score before official results arrive.
🎯
Test Preppers
Set score targets and see exactly what composite you need.
🏫
AP Teachers
Help students understand the scoring formula and section weights.
🎓
College Planners
Evaluate whether your score qualifies for college credit at target schools.

How to Use This Calculator

1
Enter MC correct answers
Input how many of the 60 multiple-choice questions you answered correctly.
2
Enter Long FRQ scores
Each long FRQ is worth up to 10 points. Enter your raw scores for FRQ 1 and FRQ 2.
3
Enter Short FRQ scores
Each short FRQ is worth up to 4 points. Enter raw scores for all four short FRQs.
4
Click Calculate
Hit the button to see your composite score and predicted 1–5 AP score.
5
Review the breakdown
Check how MC and FRQ each contributed to your composite.
6
Compare to score bands
See exactly where your composite falls in the scoring table.

Worked Example

Maya is a junior who answered 48/60 MC correctly, scored 9 and 8 on her long FRQs, and earned 3, 4, 3, 3 on her short FRQs.

MC weighted: (48/60) × 50 = 40.0
FRQ raw: 9 + 8 + 3 + 4 + 3 + 3 = 30 / 36
FRQ weighted: (30/36) × 50 = 41.7 → 42
Composite: 40 + 42 = 82 → AP Score 5

Common Scoring Mistakes to Avoid

!
Entering total questions instead of correct answers
Section I asks for how many you got right out of 60, not the total you attempted.
!
Forgetting all 4 short FRQs
There are four 4-point questions in Section II. Missing any one shifts your composite by 5–6 points.
!
Assuming cutoffs are fixed
AP Biology cutoffs adjust slightly each year via equating. The bands here reflect historical averages, not guaranteed cutoffs.
!
Ignoring partial FRQ credit
Each FRQ sub-point is scored independently. Even an incomplete long FRQ earns partial credit.
!
Using wrong long FRQ maximum
Long FRQs are scored out of 10 points each, not out of 8 or 12. Double-check before entering.

Frequently Asked Questions

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Sources & References

AP Biology Course and Exam Description
College Board · collegeboard.org
AP Score Distributions Report, 2023–2024
College Board · collegeboard.org
AP Biology Free-Response Scoring Guidelines
College Board · collegeboard.org
Reviewed By
Dr. Sarah Kim, Ph.D.
AP Biology educator & curriculum specialist

Dr. Kim has taught AP Biology for over 12 years and has contributed to College Board curriculum review. She holds a doctorate in Cell Biology from the University of Michigan.

AP Bio Exam Format
SectionQtyPoints
Section I: MC60 MC50
Long FRQ (×2)0–10 pts ea.20
Short FRQ (×4)0–4 pts ea.16
FRQ Total (Sec II)6 questions50
Composite100
Score Cutoffs (Typical)
5
Extremely
72–100
4
Well
55–71
3
Qualified
40–54
2
Possibly
26–39
1
No
0–25
💡 Pro Tip

AP Biology FRQs are scored by sub-parts: each point is earned independently. Even if you cannot fully answer a long FRQ, attempt every sub-part for partial credit. A partial answer beats a blank every time.

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