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AP Biology score calculator

How is the AP Biology exam scored? 60 multiple-choice questions (50%) and free response out of 34 (50%).

Estimated AP Biology score

Enter your scores

  • 10%+
  • 225%+
  • 345%+
  • 463%+
  • 578%+

Your result

Find your weakest AP Biology unit

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A worked example

Each part counts its share of the maximum times its weight. These example marks give a composite of 64.9 out of 100, an estimated 4.

PartMarksWeightPoints
Multiple choice right39 of 6050%32.5
Free-response points, all six22 of 3450%32.4
Composite100%64.9

The cut points come from College Board's 2013 released AP Biology scoring worksheet, as a share of its maximum: 77.5% for a 5, 62.5% for a 4, 45.0% for a 3 and 25.0% for a 2. Real cut points move a little each year.

For the exam itself

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Questions people ask

How is the AP Biology exam scored?

60 multiple-choice questions (50%) and free response out of 34 (50%). The parts are weighted into one composite out of 100, and College Board sets the composite each score from 1 to 5 needs.

What do you need for a 5 on AP Biology?

About 78% of the composite on our estimate. Spread evenly, that is 47 of 60 multiple choice and 27 of 34 free-response points.

When is the AP Biology exam in 2027?

Monday, May 3, 2027, 12 p.m. local time for most US schools. Scores come out in July.

Keep going

How we work this out

What it does

Enter your AP Biology practice scores and get your AP score.

The May 2027 AP Exams: AP Biology, 60 multiple-choice questions (50%) and free response out of 34 (50%).

Method

  1. Your composite is each part's share of its maximum times College Board's published weight for that part, added up out of 100.
  2. Cut points are College Board's released 2013 AP Biology scoring worksheet, turned into a share of the worksheet's maximum: 78% for a 5, 62% for a 4 and 45% for a 3.
  3. Your score is the highest score whose cut point your composite reaches. The line under it is the fewest extra marks on one part that would reach the next score.

Sources

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