The MCQ Section at a Glance
- 60 questions, single best answer.
- No penalty for guessing — every question is worth attempting.
- 50% of your overall AP score.
How MCQ Weighting Works
MCQ percentage = number correct ÷ 60
MCQ weighted contribution = MCQ percentage × 50
Combine this with the FRQ calculator, or use the full AP Chemistry Score Calculator to see both sections at once.
Reference Table: Common MCQ Scores
| Correct / 60 | Percentage | Weighted Contribution (/50) |
|---|---|---|
| 35 / 60 | 58.3% | 29.2 |
| 40 / 60 | 66.7% | 33.3 |
| 45 / 60 | 75.0% | 37.5 |
| 50 / 60 | 83.3% | 41.7 |
| 55 / 60 | 91.7% | 45.8 |
Use the calculator above for any exact value, not just these examples.
Worked Example
Here's a full MCQ calculation using the same numbers as this site's other worked examples, so you can check it against the full calculator's own worked example:
| Step | Calculation | Result |
|---|---|---|
| MCQ raw score | 42 correct out of 60 | 42 / 60 |
| MCQ percentage | 42 ÷ 60 | 70.0% |
| MCQ weighted contribution | 70.0% × 50 | 35.0 / 50 |
That 35.0 is exactly half of your final composite calculation — the other 50 points come entirely from your FRQ result. See the full AP Chemistry Score Calculator to add an FRQ score and get a complete estimate.
Possible Composite Combinations
Your MCQ score alone doesn't determine your AP score — it's combined equally with your FRQ result. For example, 45/60 correct (75% MCQ) contributes 37.5 of the 50 possible MCQ points, regardless of how your FRQ section goes. See how the full composite is calculated.
How Many MCQ Points Might You Need for Your Target Score?
Because MCQ and FRQ are each worth exactly 50 of the 100 composite points, there's no single MCQ number that guarantees a given AP score on its own — it depends on your FRQ performance too. That said, this site's score-target pages outline realistic MCQ/FRQ combinations for each goal, based on the same estimation model this calculator uses:
- For a target of 5, example combinations include a very strong MCQ (55+/60) paired with a solid FRQ (30+/46) — see the full points-needed-for-a-5 guide for more combinations.
- For a target of 4, example combinations include a solid MCQ (~40/60) with a solid FRQ (~28/46), or a stronger MCQ (45+/60) offsetting a moderate FRQ — see the points-needed-for-a-4 guide.
- For a target of 3, example combinations include a balanced moderate performance (~32/60 MCQ with ~20/46 FRQ), or a stronger MCQ (38+/60) offsetting a lighter FRQ — see the points-needed-for-a-3 guide.
These are the same illustrative combinations shown on each score-target page, not a guaranteed cutoff — College Board does not publish an official raw-score table. See the full methodology.
FAQ
Is there a penalty for guessing on AP Chemistry MCQ?
No. Your MCQ raw score is simply the number of correct answers, so every question is worth attempting -- leaving one blank can never help your score.
Can I calculate my MCQ score separately from FRQ?
Yes -- this page is built for exactly that. Combine it with the FRQ calculator to see your full estimated score.
What percentage is 45 out of 60 on AP Chemistry MCQ?
45/60 is 75.0%, which contributes 37.5 of the 50 possible MCQ points toward your overall composite.
Can my MCQ score alone tell me my AP score?
No. MCQ is exactly half of the composite, so the same MCQ result can land at different final AP scores depending on FRQ performance — see our score-target pages for realistic MCQ/FRQ combinations at each target.
Does a strong MCQ score make up for a weak FRQ score?
Yes, within limits. Because both sections are weighted equally, a stronger MCQ result can offset a weaker FRQ result and vice versa — see the full breakdown on our Score Conversion page.