AP Calculus AB Score Calculator
Use this calculator to estimate your AP Calculus AB score based on your performance in the Multiple Choice and Free Response sections. Please note that official score cutoffs vary slightly from year to year based on exam difficulty determined by the College Board. This tool uses representative historical data to provide a realistic estimate.
Section I: Multiple Choice (MCQ)
Usually accounts for 50% of the total score. There is no penalty for incorrect answers.
Section II: Free Response (FRQ)
Usually accounts for 50% of the total score. Each question is scored from 0 to 9 points.
Estimated AP Score:
Composite Score: / 108 (approx)
*Based on representative historical curves. Actual scores may vary.
Understanding the AP Calculus AB Scoring System
The AP Calculus AB exam is divided into two main sections, each contributing equally (50%) to your final composite score. However, the number of raw points available in each section differs, requiring a weighting process to ensure they count equally.
The Composite Score Calculation
Your final AP score ranging from 1 to 5 is determined by your total "Composite Score." The maximum possible composite score is typically around 108 points.
- Multiple Choice Section (45 questions total): You get 1 raw point for every correct answer. There are 45 raw points available. To make this section worth 50% of the total 108 points, your raw MCQ score is multiplied by a weighting factor (typically around 1.2).
- Free Response Section (6 questions total): Each of the 6 questions is worth up to 9 points, for a total of 54 raw points. Since this matches the desired weighted total for the section, the weighting factor is usually 1.0.
For example, if you got 35/45 on the MCQ and scored 40/54 on the FRQ, your composite score would be calculated approximately as: (35 × 1.2) + (40 × 1.0) = 42 + 40 = 82.
The Grading Curve (Cutoffs)
Once the composite scores are calculated for all students, the College Board establishes cutoffs to assign the final 1-5 scores. These cutoffs shift slightly every year based on statistical analysis of the exam's difficulty. The calculator above uses typical historical ranges to estimate your score.
Generally, a composite score above roughly 65-70% is often required to achieve a 5, while scores around 50% often yield a 4. It is crucial to remember that showing your work on Free Response questions can earn partial credit, even if the final answer is incorrect.
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