AP Computer Science Principles score calculator
On the AP Computer Science Principles exam, the 70 multiple-choice questions are 70% of your score and the Create performance task with its two written responses, scored on six points, the other 30%, so one Create task point counts as much as 5 multiple-choice answers. Enter your practice marks for your score out of 100 on those weights. The College Board publishes no chart that turns it into a 1 to 5, so this page does not guess one.
Example: weighted AP CSP score
48 from multiple choice (48 of 70) + 20 from the Create task (4 of 6), by the College Board’s weights: 70% and 30%.
One more multiple-choice answer adds 1.00 and one more Create task point 5.00: a Create task point is worth as much as 5 multiple-choice answers.
To reach 70 of 100: 5 of the 6 Create task points with your 48 multiple-choice answers (1 more than now), or 50 of the 70 multiple-choice answers with your Create task as it is (2 more).
- Multiple choice, 48 right48 of 70
- Video, 1 of 15 of 5
- Program requirements, 1 of 15 of 5
- Written Response 1, 1 of 15 of 5
- Written Response 2(a), 1 of 15 of 5
- Written Response 2(b), 0 of 10 of 5
- Written Response 2(c), 0 of 10 of 5
The College Board publishes no chart that turns this into a 1 to 5 for today’s exam, so this is not your AP score.
The exam format and the 2026 scoring guidelines checked on AP Central . AP and Advanced Placement are trademarks of the College Board, which does not make or endorse this calculator.
How the weighted score is worked out
- The exam: 70 multiple-choice questions (57 with one answer, 5 on a reading passage about a computing innovation and 8 where you select two answers, in 2 hours), then the Create performance task (a program you write in 9 hours of class time, with a video of it running) and two written-response questions on your program in a 60-minute part of the exam.
- Multiple choice: your answers right ÷ 70 × 70. Each answer is worth 1.00.
- Create task: add your points (out of 6), then ÷ 6 × 30. Each point is worth 5.00.
- Add the two: a score out of 100 with the sections in the College Board’s proportions, 70% and 30%.
The College Board does not say how it combines the sections into the composite behind your AP score, only what share each section has, so this is the plainest reading of those shares.
A worked example
48 of 70 multiple-choice answers right: 48 ÷ 70 × 70 = 48. Create task: 4 of 6 points: 4 ÷ 6 × 30 = 20. Together 68 of 100.
Where the next points are: a multiple-choice answer adds 1.00 and a Create task point 5.00, so one Create task point counts as much as 5 multiple-choice answers.
What each Create task point is worth
Each point is one category of the College Board’s 2026 scoring guidelines, worth 0 or 1; its share of your 100 follows from the 30% the Create task and written responses carry.
| Point | What it scores | Points | Of your 100 | As many multiple-choice answers as |
|---|---|---|---|---|
| Video | Your video shows the program running: input, what it does and output | 1 | 5 | 5 |
| Program requirements | Your code has a procedure you wrote and a call to it, a list and a use of it, selection and iteration | 1 | 5 | 5 |
| Written Response 1 | Program design, function and purpose | 1 | 5 | 5 |
| Written Response 2(a) | Algorithm development | 1 | 5 | 5 |
| Written Response 2(b) | Errors and testing | 1 | 5 | 5 |
| Written Response 2(c) | Data and procedural abstraction | 1 | 5 | 5 |
To practice, AP Central posts the last three years’ AP CSP free-response questions with their scoring guidelines and sample answers from students who sat the exam: past AP CSP exam questions. The 2024 and 2025 scoring guidelines score the same six points as 2026.
Why there is no 1 to 5 here
The College Board sets the composite each AP score needs after every exam and publishes no chart for today’s AP CSP exam. A 1 to 5 from any calculator is someone’s guess at those cut points.
What it does publish is how students scored. In 2026: 10% a 5, 23% a 4, 30% a 3, 21% a 2 and 16% a 1; 63% scored a 3 or higher. Those are shares of students, not the marks each score needed.
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Sources: College Board, AP Central, AP Computer Science Principles Exam; College Board, AP Computer Science Principles 2026 Scoring Guidelines; College Board, AP Students, 2026 AP Score Distributions.