Is this an official AP Biology Score Calculator?

No. This is an estimation tool based on the official section weights (MCQ 50%, FRQ 50%). The College Board does not publish current raw-to-score cutoffs, so any converter provides an estimate.

How many points is each AP Bio FRQ and MCQ worth?

The MCQ section has 60 questions, scaled to 50% of the score. The FRQ section has two long questions (9 points each) and four short questions (4 points each) for a total of 34 raw points, also scaled to 50%.

What is a good composite score for AP Biology?

While it varies yearly, a composite score of approximately 83+ is often needed for a 5, 69+ for a 4, and 55+ for a 3. You can use the calibration feature in this calculator to adjust these cutoffs.

Can I share my result or save scenarios?

Yes. Use the 'Copy share link' button to generate a URL with your inputs, or 'Save scenario' to store it in your browser for later comparison.

AP Biology Score Calculator (2025) — Estimated MCQ + FRQ Converter

Fast, mobile-first AP Bio calculator. Enter MCQ correct (0–60) and FRQ raw points (Q1–Q6). Results are estimations — College Board does not publish official raw→AP cutoffs.

Calculator

Multiple Choice — Correct answers (0–60)

MCQ counts for 50% of your exam score (60 questions, 1h30m).

Free Response — Enter raw points for each question

Two long FRQs (Q1–Q2): max 9 points each. Four short FRQs (Q3–Q6): max 4 points each. Total FRQ points = 34.

Q1 (0–9)

Q2 (0–9)

Q3 (0–4)

Q4 (0–4)

Q5 (0–4)

Q6 (0–4)

How the 2025 AP Biology Score is Estimated — Model & Guidance

This AP Biology Score Calculator provides a close estimate for the 2025 exam, which uses a hybrid digital format. The exam's structure remains consistent: 60 MCQs in 1 hour 30 minutes (50%) and 6 FRQs in 1 hour 30 minutes (50%). Our tool helps you convert your raw scores into a final estimated AP score from 1 to 5, allowing for better study planning.

How this calculator works (transparent model)

This tool implements a transparent section-weight model that mirrors the College Board’s published weights. It scales the MCQ raw score (0–60) to a 50-point contribution and the FRQ raw points (0–34) to a 50-point contribution. The two weighted components are added to form a composite 0–100 score. The composite is then mapped to an estimated AP score of 1–5 using configurable cutoffs. Because the College Board uses psychometric equating each year, cutoffs vary by form and are not published; we therefore clearly label results as estimates and provide calibration controls so educators and students can adjust thresholds based on observed distributions or official releases.

Using the calculator: best practices

Enter exact MCQ correct answers: Each MCQ is equally weighted. In this model 1 MCQ correct ≈ 50/60 = 0.8333 composite points. That makes MCQ increments granular and easy to reason about.
Enter FRQ raw points by question: Two long questions (max 9 each) and four short questions (max 4 each). In this model 1 FRQ point ≈ 50/34 ≈ 1.4706 composite points. FRQ points therefore move your composite more per point than a single MCQ.
Calibrate conservatively: Use the adjustable cutoff fields to match official release notes when College Board finalizes distributions (October releases are typical). The default cutoffs are seeded from historical trends—again, these are starting points, not guarantees.