Placement Tests & Diagnostics

Stanford uses a variety of ways to determine where students should begin their studies at Stanford. Placement Tests will be offered for chemistry and several foreign languages while Placement Diagnostics will be offered by physics and mathematics. The tests and diagnostics are intended to assess your existing command of the material; thus, it is neither necessary nor advisable that you study for these tests.

If you took Advanced Placement or International Baccalaureate exams, consult the Advanced Placement Credit Chart and the International Baccalaureate Credit Chart to see whether your score suggests a particular placement in classes. The "Academic Life" chapter of the Approaching Stanford Handbook provides guidance about placement considerations and course sequences in a few subject areas that require early planning (calculus, chemistry, and physics). The following department websites also offer information about placement and choosing among the introductory courses:

If in doubt, take the placement test(s) and/or diagnostic(s). Your placement results and/or recommendations will help determine the recommended starting point for your coursework in these subjects based on your knowledge in those areas. Academic Advisors (Academic Advising Directors and Academic Advisors for Student-Athletes) can also give you further guidance on choosing courses and assistance in understanding the placement recommendation. You will begin the advising conversation with your Academic Advisor via email, phone, on online chat beginning in August.

Chemistry Placement Test

The Chemistry Placement Test* will be available in Canvas August 1 - September.  

Two different general chemistry sequences are offered: Chem 31A/B, the two-quarter set of courses (Autumn and Winter), and Chem 31M, the one-quarter course (Autumn only). Both sequences fulfill the general chemistry requirement at Stanford and arrive at the same endpoint so that students will be prepared to enroll in Chem 33, the first quarter of organic chemistry. All students who are interested in taking Chem 31(A/B or M) or Chem 33 must take the corresponding Chemistry Placement Test online in Canvas this summer.

* Note: Due to the changes in the 2020 Chemistry AP Test, placement tests will be required in order to enroll in Chem 31 or Chem 33. The Chemistry website will be updated in July with the new placement test guidelines.

For students who take the placement test, you will receive feedback about your recommended placement during the first week of September. 

Math Placement Diagnostic

The Math department requires students to take an online placement diagnostic as a prerequisite to enroll in introductory Math courses (19 through 51).

The Math Placement Diagnostic will be available in Canvas starting on August 1. New students planning to enroll in Math 19-51 in the autumn should take it before they arrive to campus for NSO, regardless of any AP credit you have received. 

All incoming students who plan to take a single-variable calculus course or the first-term multivariable calculus course (Math 51) are required to take the online Math Placement Diagnostic in order to register for such a course. This diagnostic measures your mastery of topics in precalculus math and single-variable calculus, consists of approximately 60 questions, and will have no time limit (it is meant to be taken in a single sitting, and is designed to take a typical student not more than 90 minutes).  

Its only purpose is to recommend the course (up through Math 51) that is most appropriate for beginning the study of math at Stanford; no official score is assigned. The recommendation it offers is purely advisory.

Information about topics omitted on May 2020 AP Calculus exam

Due to changes in the 2020 Calculus AP Test, the Math Department has provided additional information on topics omitted on the AP test. If you will be using this material to self-learn some or all of it prior to the start of Autumn Quarter classes at Stanford, you are encouraged to do so before taking the Math placement diagnostic (since the diagnostic advises on placement into calculus Math courses at Stanford, where the syllabus content remains the same as in previous years).

Free Resources for Omitted AP Calculus Topics

Physics Placement Diagnostic

The Physics Placement Diagnostic will be available on Canvas from July 15 through Week 3 of Winter Quarter 2021.

You must take the Physics Placement Diagnostic if you have never taken an Introductory Physics course at Stanford (i.e., you have not taken at least one of PHYS 21, 23, 25, 41, 41A/E, 43, 45, 61, 63, 65) AND you would like to enroll in one of these courses: PHYS 41, 45, or 61.

The Placement Diagnostic will help us guide you on which Physics sequence you should take and where you should start on the sequence so that you are sufficiently challenged without being overwhelmed. The Placement Diagnostic is meant to be a useful tool to help students calibrate their readiness for the different physics sequences. It is not meant to be a barrier to entering courses.

Results from Physics Placement Diagnostic will be sent by email within an hour of taking the Physics Placement Diagnostic.  The advice will be sent from to your email account. You will be provided with guidance on your placement into a course within a Physics sequence.  Please check your inbox, junk, clutter, and spam folders for this email.  If you do not see the email in any of your folders within an hour of taking the diagnostic, please contact us at

Language Placement Tests

Accurate initial placement is a key factor in successfully learning a foreign language. Written and oral components of some Language Placement Tests will be offered this summer. Other Language Placement Tests will be conducted during NSO. Both the reading, writing, and grammar tests, as well as the on-campus speaking tests, are used to place students in courses that fit their current proficiency levels.

Summer Online Placement Tests (June 1 - July 15*)

Some Language Placement Tests will be offered online June 1 - July 15. Complete the written portion by July 15 and sign up for an oral interview. Check the Language Placement Test Information to determine if you need to take an online summer placement test. If you have questions, please contact

*Students unable to complete the written portion by July 15 can continue to take the placement test between July 15-August. But please be sure to have signed up for an oral interview appointment by July 15.

Update: All Language Placement Tests will be provided online this year. Please also check the Language Center website periodically throughout the summer for updates on placement testing in all languages.

Results from the Language Placement tests will be posted on Canvas at the end of the day. Email with any questions.

Academic Accommodations for Placement Tests/Diagnostics

Students who may need an academic accommodation based on the impact of a disability must initiate the request with the Office of Accessible Education (OAE). Professional staff will evaluate the request with required documentation, recommend reasonable accommodations, and assist the student in notifying the department of their accommodations. If you need academic accommodations for the placement exams and/or diagnostics, you should begin the process as soon as you are able, as it can take time to obtain the necessary documentation. Register with OAE.