AP Calculus AB vs BC: Differences, Difficulty and Which to Take

The Short Answer

AP Calculus BC covers everything in AB plus extra topics, at a faster pace. AB is roughly a first college calculus semester, and BC is roughly the first two semesters. If your child is strong at maths and wants a STEM degree, BC is usually the better signal. If they want a solid calculus score without the extra topics, AB is a sensible choice.

What Each Course Covers

Topic area	AB	BC
Limits and continuity	Yes	Yes
Derivatives and their applications	Yes	Yes
Integrals and the Fundamental Theorem of Calculus	Yes	Yes
Differential equations and slope fields	Yes	Yes
Integration techniques such as parts and partial fractions	No	Yes
Euler's method	No	Yes
Parametric, polar and vector-valued functions	No	Yes
Infinite series, convergence tests, Taylor and Maclaurin series	No	Yes

How the Exams Compare

Both exams have two sections of equal weight:

Multiple choice: a mix of questions with and without a calculator.
Free response: six questions, again with and without a calculator.

Both exams are scored from 1 to 5. The format is the same, so the difference is the amount of content, not the structure. BC students also receive an AB subscore from their BC exam, which can still be useful if the overall BC score is lower than hoped.

Which Is Harder?

BC is harder because it covers more material, and it does so in about the same school year. Series are the topic students find hardest, because they need a different kind of reasoning from the rest of the course. AB is less content-heavy, but it still needs strong algebra, careful differentiation and clear written justification on the free-response questions.

Which Should You Choose?

Choose BC if:

your child is already strong in precalculus and enjoys maths
they are aiming for engineering, physics, computer science, maths or economics
their school offers BC and a teacher who will move quickly

Choose AB if:

they want calculus on their transcript without the extra pace
their school offers AB only, or BC is a very large step up
they are taking several other demanding AP courses at once

If your school offers both, your counsellor or maths teacher can advise based on your child's current grades.

Do Colleges Give Credit for AP Calculus?

Credit policies vary by university and by degree. Many colleges award credit or placement for a 4 or 5, and BC often earns more credit than AB because it covers more content. Always check the policy of each college your child is considering.

Common Questions

Is AP Calculus BC harder than AB?

Yes. BC covers all of AB plus extra topics, including series, parametric and polar functions, and it covers them in about the same amount of time.

Does BC include AB?

Yes. BC includes all AB content and adds more, and it reports an AB subscore.

Can I take BC without taking AB first?

Usually yes. Most students go straight to BC after precalculus if their school offers it. Check with your school.

Do I need AP Calculus for a STEM degree?

It is not always required, but it is a strong signal of readiness for STEM. Many students also take AP Physics or AP Chemistry alongside it.

Which is better for college admissions, AB or BC?

Colleges look at rigour relative to what your school offers. BC is generally viewed as the more demanding course, but a strong AB result is better than a weak BC result.

How many hours of tutoring do I need for AP Calculus?

It depends on the student's starting point and target score. A tutor can run a diagnostic first and recommend a plan.

Get Help With AP Calculus

Our tutors cover AB and BC, with free-response rubric practice built in. See our AP Calculus tutor page, or compare AP with IB in AP vs IB for US college applications.

Book a free demo class to map out your child's plan.