A Bachelor of Arts (BA) and a Bachelor of Science (BS) both take about four years to complete and require the same total number of credits. The difference lies in how those credits are distributed: a BA emphasizes broader exploration across the humanities, arts, and social sciences, while a BS concentrates more heavily on math, science, and technical coursework within your field of study.
For some majors, you’ll only find one option. English is almost always a BA; engineering is almost always a BS. But many fields, including psychology, economics, and computer science, offer both. That’s where the distinction really matters.
How the Coursework Differs
A BA program typically requires a foreign language component. At many universities, that means reaching a 12th-credit-hour level of proficiency in a second language, which translates to roughly three or four semesters of study. BA students also take a wider spread of courses across humanities, social and behavioral sciences, arts, and natural sciences. The tradeoff is that you get more room for general electives, letting you explore subjects outside your major or pick up a minor more easily.
A BS program replaces much of that breadth with depth. You’ll take more math, statistics, and lab science courses tied directly to your field. The curriculum tends to be more rigid because each required course builds toward specific technical competencies. That means fewer open elective slots in your schedule.
Same Major, Different Tracks
The clearest way to see the distinction is to look at a field that offers both degrees. Psychology is a good example. A BA in psychology and a BS in psychology share a core set of classes covering topics like developmental psychology, abnormal psychology, and research methods. But the BS track layers on additional requirements.
At Arizona State University, for instance, BS psychology students must complete an extra statistics course (statistical methods) on top of the introductory statistics class that both tracks require. They also need a life science lecture and lab course beyond the general education science requirements. These additions steer BS students toward stronger quantitative and research skills, while BA students use that same credit space for electives in other disciplines.
You’ll find similar patterns in economics, communications, and environmental studies programs. The BS version almost always asks for more math or science; the BA version almost always offers more flexibility.
Which Degree Fits Which Goals
Your choice between a BA and BS should depend on what you plan to do after graduation, not on which degree sounds more impressive. Neither is universally “better.”
A BS tends to be the stronger choice if you’re heading toward graduate programs in research-heavy or applied science fields. The extra coursework in statistics and lab sciences builds a foundation that master’s and doctoral programs expect. It also signals to employers in technical roles that you have hands-on experience with data analysis and scientific methodology.
A BA makes more sense if you want a well-rounded education, plan to work in roles that value communication and critical thinking across disciplines, or want to double-major or add a minor without overloading your schedule. Fields like marketing, human resources, public relations, nonprofit management, and education hire BA graduates regularly. The foreign language requirement can also be a genuine asset if your career involves international work or multilingual communities.
Do Employers Care Which One You Have?
For most entry-level jobs, employers care far more about your major, your internships, and your skills than whether your diploma says BA or BS. A hiring manager reviewing applications for a marketing analyst role is looking at whether you can work with data and communicate clearly, not parsing the two letters before your degree title.
The distinction matters more in fields where technical depth is a baseline expectation. If you’re applying to a data science role or a research assistant position, a BS signals that your coursework included the quantitative training the job requires. If you’re applying to a writing, teaching, or counseling role, a BA signals breadth and communication skills that fit the work.
Graduate school admissions committees pay closer attention. A BS in psychology, with its additional statistics and lab science courses, positions you better for a research-oriented master’s program. A BA in psychology pairs well with graduate programs in counseling, social work, or education, where broad humanistic training is valued.
Can You Switch Between Them?
At most universities, switching from a BA to a BS track (or vice versa) within the same major is straightforward, especially if you do it early. The core major courses overlap significantly, so you’re mainly adjusting your supporting coursework. If you switch from a BA to a BS late in your program, you may need extra semesters to fit in the required math or science courses. Switching from a BS to a BA late is usually easier since the remaining requirements are general electives and language courses that can fill open slots.
If you’re undecided, start with whichever track aligns with your current interests and talk to your academic advisor before your third year. That gives you enough runway to adjust without delaying graduation.