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Study PhD in USA for International Students

Learn everything you need to know about studying for a PhD in USA and get our end-to-end expert guidance.

Last updated29th Dec 2025
7 mins read
10.1K views
Anshul Mishra
Published by Anshul Mishra

USA Study Abroad Expert | Head of Client Relations (USA)

The USA has become a hub of academic excellence in the field of academia and research. Many scholars pursue a PhD in USA due to the advanced research technology and access to information that the institutions of the USA have. Various factors like the quality of education, resources and facilities, presence of reputed institutions, adequate funding, worldwide networking opportunities and a diverse and inclusive environment make the USA an excellent choice for a PhD.

The tuition for a PhD varies as per the discipline and institute chosen. For example, public universities are more cost-effective than private ones. Scholarships and financial aid are also provided to promising students. The PhD stipend in the USA also varies from institution to institution and also the course taken.

Why Pursue a PhD Programme in USA?

The United States is a widely preferred country for pursuing a PhD for several key reasons:

  • Quality of Education: The US is home to many of the world’s top-ranked universities, known for their academic excellence and innovative research programmes. US universities are world leaders when it comes to research.
  • Resources and Facilities: With cutting-edge equipment and laboratories, along with access to the latest technology, the PhD programmes in the USA provide students with state-of-the-art facilities to excel in their discipline. Apart from laboratories, the US also has extensive libraries and databases to support in-depth research.
  • Funding Opportunities: Numerous scholarships in USA, fellowships, and research grants are available to PhD students. These are often funded by universities or the government. Many students also receive financial support through assistantship programmes and stipends.
  • Networking: PhD programmes in USA allow students to receive maximum exposure with academic scholars and leading professionals worldwide.
  • Diversity: The US is known for bringing together inclusive batches to promote diversity and a culturally rich background.
  • Career prospects: The popularity and excellence of the US universities make way for wide career prospects throughout the globe.

Invest in a future that pays off. We can help guide you to the best PhD programmes available in the USA that align with your academic and professional aspirations.

How Much Does it Cost to Do a PhD in the USA?

The cost of a PhD in USA varies significantly across institutions and disciplines. The cost of doing a PhD in the USA is roughly between US $35,000 - $65,000 per year. Public universities in the USA provide PhD programmes at a subsidised rate as compared to private universities.

Private universities in the USA usually charge somewhat higher than public universities, depending on the reputation, faculty, and facilities provided. Additionally, living expenses, health insurance, books, and miscellaneous fees may add another US $25,000 - $28,000 on average per year.

Many PhD programmes in USA offer substantial funding through research and teaching assistantships, fellowships and grants, which may cover tuition and give stipends which may range from US $20,000 USD to $30,000 per year.

Requirements to Study PhD in USA

All international students planning to study PhD in USA must ensure that they qualify the pre-requisites stipulated by US universities. Among the basic requirements to study PhD in USA include:

Academic Prerequisites

  • Bachelor’s Degree: Must have a bachelor's degree from an accredited institution.
  • Master’s Degree: Preferred or required for some programmes.
  • GPA: Generally, a minimum GPA of 3.0 on a 4.0 scale, though competitive programmes may require higher.
  • Prerequisite Courses: Specific undergraduate or master’s level coursework relevant to the PhD programme.

Standardized Tests

  • GRE: Graduate Record Examination scores, though some programs may waive this requirement.
    • Subject GRE: Required for certain fields like Physics, Chemistry, etc.

Language Proficiency

  • TOEFL iBT: Test of English as a Foreign Language, usually a minimum score of 80/100 on the iBT.
  • IELTS Academic: International English Language Testing System, typically a minimum score of 6.5 - 7.0 or higher.
  • PTE Academic: Pearson Test of English, sometimes accepted with a score requirement of 5570.
  • Waivers: Possible if the applicant has completed a degree in an English Speaking Country.

Documents Required

  • Transcripts: Official transcripts of all institutions after the secondary level.
  • Letters of Recommendation: Usually, 3 letters from academic or professional references.
  • Statement of Purpose: An essay outlining academic interests, research goals, and reasons for choosing the specific programme.
  • CV: Must contain detailed information about academics, any previous research experience, available publications, and all relevant work experience.
  • Writing Sample: Required by some programmes, particularly in humanities and social sciences.
  • Research Proposal: Sometimes needed, particularly for direct entry PhD programmes.
  • Application Fee: Varies by institution, typically from US $50 to US $100.

Other Requirements

  • Interview: Candidates may need to attend an in-person or video interview for some courses.
  • Portfolio: For applicants to programmes in fields like Fine Arts or Architecture.

Visa Requirements

  • Form I20: Issued by the university upon admission, required to apply for the F1 student visa.
  • SEVIS Fee: Payment of the SEVIS I901 fee.
  • Visa Application: Completion of the visa form and payment of the visa application fee.
  • Passport: Valid for a minimum of 6 months after the intended duration of stay.
  • Financial Proof: Documentation demonstrating sufficient funds to cover tuition and living expenses for at least one year.
  • Visa Interview: The US consulate or embassy in the prospective student’s country conducts the interview.
  • Health Insurance: Proof of health insurance coverage, either provided by the university or independently acquired.

These detailed requirements ensure that prospective PhD students are well prepared and meet the standards expected by US universities. Connect with AECC experts to find out if you qualify the strict requirements by US universities for aspiring PhD applicants.

How Many Years Does it Take for a PhD Degree in the USA?

A PhD programme in USA typically ranges for 4-8 years, varying based on the field of study. For example, a course in the sciences takes about 5-7 years whereas a course in humanities may take up to 6-8 years due to the time taken in extensive research. A PhD in education may take up to 4 years, while engineering and social sciences can take up to 5-6 years.

How to Select the Right US Universities for PhD?

These are the steps to decide how to choose the universities for a PhD in USA.

Step 1: Identify your academic and career goals.

Step 2: Research potential universities and evaluate programme requirements.

Step 3: Consider location and campus life.

Step 4: Review financial aid and scholarships

Step 5: Check accreditation and reputation.

Step 6: Assess research facilities and resources. You can also seek advice and gather information.

Step 7: Review application procedures and finalize your choices.

Researching about the programme you’d like to enroll in the future is crucial for your academic stability. Choosing a course you may enjoy at the finest university you can enroll in is recommended.

Can I Work while Doing a PhD in USA?

While there are no restrictions on working while doing a PhD in the USA, there are a few specific conditions:

  • On-Campus Employment: International students (F1 visa) can work up to 20 hours per week during the academic year and full-time during breaks.
  • Assistantships: Many PhD students work as teaching assistants (TAs) or research assistants (RAs), which provide a stipend and often cover tuition.
  • Off-Campus Employment: Requires authorization through Curricular Practical Training (CPT) or Optional Practical Training (OPT) for work related to your field of study.
  • University Policies: Check specific university policies and restrictions regarding employment while pursuing your PhD.

Balancing work and PhD studies can be challenging, but these opportunities provide financial support and valuable experience. Always consult your university's international student office for specific regulations and opportunities.

Pursuing a PhD in USA is a significant investment in your future, offering opportunities for advanced research, academic growth, and career advancement. The process involves selecting the right university, navigating admission requirements, and securing financial aid through scholarships and assistantships.

AECC is your one-stop solution if you want to do a PhD in the USA. Connect with our counsellors for detailed guidance on everything you need to know to fulfil your dreams.

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Anshul Mishra
Published by Anshul Mishra

USA Study Abroad Expert | Head of Client Relations (USA)

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With over 11 years of experience in the study abroad field, Anshul Mishra is an expert at helping students get into universities in the USA. He is passionate about guiding students through the application process to help them reach their school and career goals.

Anshul has held important leadership jobs at well-known education companies like AECC and Jamboree Education Private Limited. As a "National Head - Admissions Sales" and "Business Head", he led teams that helped many students find their path to studying in another country.

Today, in his role as Head of Client Relations (USA), Anshul has the most current, real-world knowledge about the American education system. His experience managing teams and advising students in major Indian cities like Mumbai, Delhi, Ahmedabad, Hyderabad, Vizag, Bengaluru, Chennai and Kochi means he understands the questions and hopes of students from all over the country.

What Anshul Brings to You

  • Real Experience: He has worked for over a decade in student admissions and counselling.
  • Leadership You Can Trust: Anshul has a proven history of leading successful teams that help students.
  • Business Knowledge: He even started his own company, which shows he knows how to build things from the ground up.

Anshul Can Help You With

  • Choosing the Right University: Navigate the thousands of US university options to find the perfect fit for your specific career goals and budget.
  • Making Your Application Stand Out: Build a powerful student profile that highlights your unique strengths, helping you impress admissions officers in a crowded field of applicants.
  • Simplifying Complex Applications: Get clear, step-by-step guidance on the entire US application process, from writing powerful essays to correctly filling out and submitting forms.
  • Understanding the Admissions Strategy: Learn what US universities are really looking for in a candidate, giving you an insider's advantage in your application journey

Anshul has a Bachelor's degree from the University of Rajasthan. When you read an article by Anshul, you get simple, direct advice from an experienced leader who truly enjoys helping students succeed.

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