Have you ever wondered whether to write “Bachelor of Science” or “Bachelors of Science”? This is a common question among students, educators, and even professional writers. Many people confuse the singular and plural forms, and this confusion is often compounded by differences between British English (UK) and American English (US).
Understanding the correct usage is crucial, especially if you are preparing resumes, writing academic documents, or applying for jobs or universities. Using the wrong form can appear unprofessional or even confuse readers. In addition, with global communication, both UK and US audiences need clarity in academic titles.
In this article, we will explain the correct form, common mistakes, UK vs US differences, examples, and tips to remember the proper usage. By the end, you will have a clear understanding and confidence in using this term correctly.
Quick Answer
The correct form is “Bachelor of Science”. The term refers to a single academic degree awarded to a student who has completed an undergraduate program in science.
The form “Bachelors of Science” is considered incorrect in formal writing, although it is sometimes used informally. In US English, some may see it in casual contexts, but it is not grammatically correct in official documents or certificates.
Meaning of the Correct Form
Bachelor of Science (BSc or BS) refers to an undergraduate academic degree awarded in the field of science or technology. It is singular and properly capitalized in formal writing.
- Example (US English): Sarah earned a Bachelor of Science in Biology from Harvard University.
- Example (UK English): James graduated with a Bachelor of Science in Physics from the University of Cambridge.
Key points about the correct form:
- Singular “Bachelor” – Refers to one degree holder.
- “of Science” – Indicates the field of study.
- Used in resumes, transcripts, official certificates, and formal academic writing.
- Can be abbreviated as BSc (UK/International) or BS (US).
UK vs US Variations
- In the UK, Bachelor of Science (BSc) is standard. Plural forms are rarely used.
- In the US, Bachelor of Science (BS) is common. Some casual sources incorrectly add an “s” to write “Bachelors of Science,” but this is not recommended in professional contexts.
Meaning of the Incorrect Form
The form “Bachelors of Science” is technically incorrect. It suggests multiple degrees or is used as a plural for multiple people, but it misrepresents the official academic title.
- Example of incorrect usage:
- Incorrect: John and Sarah both earned Bachelors of Science.
- Correct: John and Sarah both earned a Bachelor of Science.
Why it’s incorrect:
- “Bachelor” is a noun describing a single degree, not multiple degrees collectively.
- The plural “Bachelors” is unnecessary because each person earns a Bachelor of Science, not multiple bachelors at once.
- Using “Bachelors of Science” in formal documents may be considered unprofessional.
Keyword Comparison / Key Differences

| Aspect | Bachelor of Science | Bachelors of Science |
| Correctness | ✅ Correct in formal writing | ❌ Incorrect in formal contexts |
| Number | Singular, refers to one degree | Plural, incorrectly implies multiple degrees |
| UK Usage | Standard (BSc) | Rare, not recommended |
| US Usage | Standard (BS) | Occasionally seen in casual contexts |
| Examples | Bachelor of Science in Chemistry | Bachelors of Science in Chemistry (incorrect) |
Key Difference: Always use Bachelor of Science for an individual degree, regardless of whether you are writing for UK or US audiences.
Common Mistakes People Make
- Adding “s” unnecessarily
- Wrong: I earned my Bachelors of Science in Mathematics.
- Correct: I earned my Bachelor of Science in Mathematics.
- Pluralizing for multiple students
- Wrong: Several students earned Bachelors of Science.
- Correct: Several students earned Bachelor of Science degrees.
- Incorrect abbreviations
- Wrong (UK): BS in Biology (may confuse with US readers)
- Wrong (US): BSc in Physics (may confuse with UK readers)
- Correct: UK – BSc, US – BS
- Misusing in formal documents
- Using “Bachelors of Science” in certificates, applications, or resumes is considered unprofessional.
- Confusing plural for field vs degree
- Wrong: He has multiple Bachelors of Science.
- Correct: He has multiple Bachelor of Science degrees.
Correct Usage in Sentences
For UK English:
- She graduated with a Bachelor of Science in Computer Science from Oxford University.
- Every student must complete a Bachelor of Science (BSc) program before applying for a Master’s degree.
- My brother received his BSc in Engineering last year.
For US English:
- He earned a Bachelor of Science (BS) in Nursing from Johns Hopkins University.
- All applicants must submit their BS transcripts before the deadline.
- Many students pursue a BS in Environmental Science to work in research.
Important Tip: When talking about multiple people, say:
- Correct: They all earned Bachelor of Science degrees.
- Incorrect: They all earned Bachelors of Science.
Tips to Remember the Correct Usage
- Singular “Bachelor” for one degree – No “s” unless you mean multiple degrees.
- Field follows “of Science” – Always specify the subject, e.g., Bachelor of Science in Chemistry.
- Abbreviations differ by region – Use BSc for UK and BS for US.
- Plural for multiple degrees, not the title – Say Bachelor of Science degrees, not “Bachelors of Science.”
- Mnemonic: Think “One Bachelor, One Science” – it helps remember the singular form.
FAQs
1. Can I say “Bachelors of Science” in the US?
- Informally, some may say it, but in formal writing or resumes, always use Bachelor of Science (BS).
2. What is the abbreviation for UK and US?
- UK: BSc
- US: BS
3. How do I refer to multiple people with this degree?
- Correct: They earned Bachelor of Science degrees.
- Incorrect: They earned Bachelors of Science.
4. Is “Bachelor of Science in Biology” correct?
- Yes, always specify the field after “Bachelor of Science.”
5. Can I use “Bachelor’s of Science” with an apostrophe?
- No, this is also incorrect. Avoid the apostrophe; the correct form is always Bachelor of Science.
6. Is it different in Canada or Australia?
- No, both follow UK-style spelling: Bachelor of Science (BSc).
7. Can I shorten “Bachelor of Science in Nursing” to “BSN”?
- Yes, in US contexts, BSN is commonly used for Bachelor of Science in Nursing.
Conclusion
To summarize, the correct and professional form is always Bachelor of Science, regardless of UK or US context. Avoid adding an “s” or apostrophe in formal writing. Use BSc in the UK and BS in the US, and always specify the field of study.
Remember these simple tips: one degree = one Bachelor, multiple degrees = Bachelor of Science degrees, and always check regional abbreviation differences.
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