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How Long Does It Take To Get a PhD?

A PhD program typically takes four to seven years, but a variety of factors can impact that timeline.

A PhD , or doctorate degree , is the highest degree you can earn in certain disciplines, such as psychology, engineering, education, and mathematics. As a result, it often takes longer to earn than it does for a bachelor’s or master’s degree.

While many PhD programs are designed to be finished in four or five years, the average completion time is much longer when you factor in the time it takes to research and write a dissertation. In 2020, for example, doctoral students took between six and twelve years to complete their PhDs [ 1 ]. By comparison, you can complete a master's degree in one to three years.

In this article, we'll explore the requirements of a PhD, what often ends up adding to the length of time, and important factors you should consider when deciding whether it’s the right choice for you.

PhD requirements + general timeline

Doctoral programs typically require PhD candidates to take take advanced courses, pass a comprehensive exam (sometimes called "comps"), and produce an original body of research, such as a dissertation, to obtain the degree. In some cases, you may also be expected to fulfill a teaching assistantship or research assistantship, both of which are meant to prepare you for a career in academia or research.

PhD requirements

The precise requirements you'll need to complete in order to get your PhD vary from one program to another, but some common tasks include:

Advanced coursework: Graduate-level coursework that explores a number of advanced sub-topics related to your field

Comprehensive exam: An exam that requires you to show knowledge of your field, such as its history, important figures, major theories or research, and more

Dissertation: An original body of research you contribute to your field

PhD timeline

The specifics of a PhD program vary by college and university, but the following estimates give you an idea of what to expect during your time in graduate school:

Year 1: Complete advanced coursework.

Year 2: Complete advanced coursework and begin preparing for your comprehensive exams.

Year 3: Study, take, and defend your comprehensive exams. Begin researching your dissertation proposal.

Year 4: Submit your dissertation proposal to your committee chair, and, once approved, begin working on your dissertation.

Year 5: Finish writing your dissertation and submit for committee approval. Defend your dissertation and apply for graduation.

Note that while this timeline gives a general timeline of how long it will take to complete a PhD program, it's very common for candidates to take more than one year to research and compose their dissertation.

Read more: Should You Go Back to School? 7 Things to Consider

PhD timelines by focus

Some PhD programs take longer to complete than others. For example, earning a doctorate in a science and engineering field typically takes less time than earning a doctorate in the arts or humanities, according to data from the National Center for Science and Engineering Statistics (NCSES) [ 1 ]. The list below shows the median length of time it took doctorate students to earn their degree in 2020:

Physical and Earth Sciences: 6.3 

Engineering: 6.8 years

Life sciences: 6.9 years

Mathematics and computer science: 7 years

Psychology and Social Sciences: 7.9 years

Humanities and arts: 9.6 years

Education: 12 years

Learn more: What Is a Terminal Degree and Do I Need One?

Why does it take so long to complete a PhD?

There are a few reasons why it takes more time to complete a PhD compared to other advanced degrees.

1. Dissertations

Once a doctoral student has successfully passed their comps, they are considered “All But Dissertation” or “ABD.” Yet, the number of students who successfully complete their PhD program remains low—estimates show that nearly 50 percent of students drop out, often after reaching the dissertation phase [ 2 ].

The dissertation phase can often take much longer to complete than the other requirements of a PhD. Researching and writing a dissertation takes significant time because students are expected to make an original and notable contribution to their field.

2. Assistantship obligations

Teaching and research assistantships are beneficial because they can help pay for a PhD program, but they may also take time away from working on your dissertation. Some students are expected to teach at least one class per semester on top of their other obligations as graduate students.

For universities that reduce the teaching or research load that students have as part of their assistantship, times to completion tend to improve. Humanities students at Princeton University began finishing their degree in 6.4 years (compared to 7.5 years) thanks to the institution's financial support and the reduced number of classes students taught [ 3 ].

3. Other responsibilities

Doctoral students tend to be older. Graduate students pursuing a PhD in science or engineering were an average of 31.6 years old by the time they earned their degree in 2016, according to the National Science Foundation [ 4 ]. In effect, some PhD students may have competing obligations, such as family. If a student’s funding has run out, and they have to find full-time work, it also may affect the time they can dedicate to writing their dissertation.

Is a PhD right for you?

People pursue PhDs for various reasons: Some want a job that requires the degree, such as teaching at a university, while others want the challenges or intellectual engagement that a graduate program offers. Identifying why you want to earn a PhD can help indicate whether it’s your best choice.

If your career aspirations don't require a PhD, it might be better to focus on gaining professional experience. Or if you're interested in an advanced education, a master's degree may be a better option. It takes less time to complete than a PhD and can lead to more career opportunities and larger salaries than a bachelor's degree.

Learn more: Is a Master’s Degree Worth It?

Benefits of a PhD

The primary advantage of earning a PhD is your increased demand and marketability in the workforce.

In 2018, less than 5 percent of the United States population had a doctorate degree, compared to about 48 percent with a bachelor's degree and 21 percent with a master's degree, according to the US Census Bureau [ 5 ]. As a member of this elite group, the potential for advanced roles, promotions, or pay raises may be greater.

Even before you have a degree in hand, working toward a PhD gives you opportunities to hone valuable skills , including writing, research, and data analysis . Furthermore, completing a PhD program can demonstrate to potential employers that you have specialized knowledge and the fortitude to finish such an advanced degree.

Costs of a PhD

Beyond the time they take to complete, PhD programs can be expensive. The average cost of a PhD program in the United States is just under $100,000. At some schools, the cost of a PhD can even exceed $200,000 [ 6 ]. While many institutions offer funding support in the form of assistantships or scholarships, many PhD students still graduate with student loan debt. In 2023, the average student loan debt for PhD was $134,797 [ 7 ].

Another factor to consider is the loss of income you might incur while you're working toward your degree. Some graduate students accept teaching or research assistantships to help fund the cost of their program, but these may not pay as much as full-time positions. Working on your education may also mean pausing the professional experience you’d gain in the workforce—and potentially losing out on promotions and raises. However, it’s worth noting that graduate degree holders earn much more over the course of their lifetime than bachelor’s degree holders, according to the US Social Security Administration [ 8 ].

Read more: How to Pay for Graduate School: 8 Ways

Set yourself up for success

A PhD is a major accomplishment. As you think about your long-term goals and whether a PhD will help you achieve them, it's important to understand ways you can set yourself up for success. According to the University of Georgia, success in a PhD program often means [ 9 ]:

Understanding the demands and expectations of the program

Receiving adequate program orientation

Getting support from peers and faculty

Feeling a sense of belonging as a member of an academic community

These conditions underscore the importance of choosing the right program and school to fit your personal and professional goals. Take time to research the ways your potential institution offers financial support, mental health support, and career placement support, among other program features.

An advanced degree can be a lucrative credential. You can earn your master’s in a number of in-demand fields from top universities on Coursera. Earn a degree in computer science , business , management , or public health , all while enjoying greater flexibility than an in-person degree program tends to offer. Earning your master's can also help you discern whether a PhD makes sense for your larger objectives.

Article sources

Survey of Earned Doctorates. " Path to the doctorate , https://ncses.nsf.gov/pubs/nsf22300/report/path-to-the-doctorate." Accessed January 30, 2024.

International Journal of Higher Education. “ Who Are the Doctoral Students Who Drop Out? , https://files.eric.ed.gov/fulltext/EJ1188721.pdf.” Accessed January 30, 2024.

The New York Times. " Exploring Ways to Shorten the Ascent to a PhD , https://www.nytimes.com/2007/10/03/education/03education.html." Accessed January 30, 2024.

National Science Foundation. " Science and Engineering Doctorates , https://www.nsf.gov/statistics/2018/nsf18304/report/age-at-doctorate-award-what-are-the-overall-trends-and-characteristics/characteristics-of-doctorate-recipients-sex.cfm." Accessed January 30, 2024.

US Census Bureau. " About 13.1 Percent Have a Master’s, Professional Degree or Doctorate , https://www.census.gov/library/stories/2019/02/number-of-people-with-masters-and-phd-degrees-double-since-2000.html." Accessed January 30, 2024.

Education Data Initiative. " Average Cost of a Doctorate Degree , https://educationdata.org/average-cost-of-a-doctorate-degree." Accessed January 30, 2024.

Education Data Initiative. " Average Graduate Student Loan Debt , https://educationdata.org/average-graduate-student-loan-debt." Accessed January 30, 2024.

Social Security Administration. " Education and Lifetime Earnings , https://www.ssa.gov/policy/docs/research-summaries/education-earnings.html." Accessed January 30, 2024.

 A Data-Driven Approach to Improving Doctoral Completion. " Chapter 2: Description of Projects , https://cgsnet.org/cgs-occasional-paper-series/university-georgia/chapter-2." Accessed January 30, 2024.

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Editorial Team

Coursera’s editorial team is comprised of highly experienced professional editors, writers, and fact...

This content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses and other credentials pursued meet their personal, professional, and financial goals.

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How Long Does It Take to Get a Ph.D. Degree?

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Earning a Ph.D. from a U.S. grad school typically requires nearly six years, federal statistics show.

(CAIAIMAGE/TOM MERTON/GETTY IMAGES)

A Ph.D. is most appropriate for someone who is a “lifelong learner.” 

Students who have excelled within a specific academic discipline and who have a strong interest in that field may choose to pursue a Ph.D. degree. However, Ph.D. degree-holders urge prospective students to think carefully about whether they truly want or need a doctoral degree, since Ph.D. programs last for multiple years.

According to the Survey of Earned Doctorates, a census of recent research doctorate recipients who earned their degree from U.S. institutions, the median amount of time it took individuals who received their doctorates in 2017 to complete their program was 5.8 years. However, there are many types of programs that typically take longer than six years to complete, such as humanities and arts doctorates, where the median time for individuals to earn their degree was 7.1 years, according to the survey.

Some Ph.D. candidates begin doctoral programs after they have already obtained master’s degrees, which means the time spent in grad school is a combination of the time spent pursuing a master’s and the years invested in a doctorate. In order to receive a Ph.D. degree, a student must produce and successfully defend an original academic dissertation, which must be approved by a dissertation committtee. Writing and defending a dissertation is so difficult that many Ph.D. students drop out of their Ph.D. programs having done most of the work necessary for degree without completing the dissertation component. These Ph.D. program dropouts often use the phrase “ all but dissertation ” or the abbreviation “ABD” on their resumes.

According to a comprehensive study of  Ph.D. completion rates  published by The Council of Graduate Schools in 2008, only 56.6% of people who begin Ph.D. programs earn Ph.D. degrees.

Ian Curtis, a founding partner with H&C Education, an educational and admissions consulting firm, who is pursuing a Ph.D. degree in French at Yale University , says there are several steps involved in the process of obtaining a Ph.D. Students typically need to fulfill course requirements and pass comprehensive exams, Curtis warns. “Once these obligations have been completed, how long it takes you to write your dissertation depends on who you are, how you work, what field you’re in and what other responsibilities you have in life,” he wrote in an email. Though some Ph.D. students can write a dissertation in a single year, that is rare, and the dissertation writing process may last for several years, Curtis says.

[ READ: What Is a Doctorate or a Doctoral Degree?  ]

Curtis adds that the level of support a Ph.D. student receives from an academic advisor or faculty mentor can be a key factor in determining the length of time it takes to complete a Ph.D. program. “Before you decide to enroll at a specific program, you’ll want to meet your future advisor,” Curtis advises. “Also, reach out to his or her current and former students to get a sense of what he or she is like to work with.”

Curtis also notes that if there is a gap between the amount of time it takes to complete a Ph.D. and the amount of time a student’s funding lasts, this can slow down the Ph.D. completion process. “Keep in mind that if you run out of funding at some point during your doctorate, you will need to find paid work, and this will leave you even less time to focus on writing your dissertation,” he says. “If one of the programs you’re looking at has a record of significantly longer – or shorter – times to competition, this is good information to take into consideration.”

Pierre Huguet, the CEO and co-founder of H&C Education, says prospective Ph.D. students should be aware that a Ph.D. is designed to prepare a person for a career as a scholar. “Most of the jobs available to Ph.D. students upon graduation are academic in nature and directly related to their fields of study: professor, researcher, etc.,” Huguet wrote in an email. “The truth is that more specialization can mean fewer job opportunities. Before starting a Ph.D., students should be sure that they want to pursue a career in academia, or in research. If not, they should make time during the Ph.D. to show recruiters that they’ve traveled beyond their labs and libraries to gain some professional hands-on experience.”

Jack Appleman, a business writing instructor, published author and Ph.D. candidate focusing on organizational communication with the  University at Albany—SUNY , says Ph.D. programs require a level of commitment and focus that goes beyond what is necessary for a typical corporate job. A program with flexible course requirements that allow a student to customize his or her curriculum based on academic interests and personal obligations is ideal, he says.

[ READ: Ph.D. Programs Get a Lot More Practical.  ]

Joan Kee, a professor at the University of Michigan  with the university’s history of art department, says that the length of time required for a Ph.D. varies widely depending on what subject the Ph.D. focuses on. “Ph.D. program length is very discipline and even field-specific; for example, you can and are expected to finish a Ph.D, in economics in under five years, but that would be impossible in art history (or most of the humanities),” she wrote in an email.

Jean Marie Carey, who earned her Ph.D. degree in art history and German from the  University of Otago  in New Zealand, encourages prospective Ph.D. students to check whether their potential Ph.D. program has published a timeline of how long it takes a Ph.D. student to complete their program. She says it is also prudent to speak with Ph.D. graduates of the school and ask about their experience.

Bennett urges prospective Ph.D. students to visit the campuses of their target graduate programs since a Ph.D. program takes so much time that it is important to find a school that feels comfortable. She adds that aspiring Ph.D. students who prefer a collaborative learning environment should be wary of graduate programs that have a cut-throat and competitive atmosphere, since such students may not thrive in that type of setting.

[ READ: 4 Fields Where Doctorates Lead to Jobs.  ]

Alumni of Ph.D. programs note that the process of obtaining a Ph.D. is arduous, regardless of the type of Ph.D. program. “A Ph.D. is a long commitment of your time, energy and financial resources, so it’ll be easier on you if you are passionate about research,” says Grace Lee, who has a Ph.D. in neuroscience and is the founder and CEO of Mastery Insights, an education and career coaching company, and the host of the Career Revisionist podcast.

“A Ph.D. isn’t about rehashing years of knowledge that is already out there, but rather it is about your ability to generate new knowledge. Your intellectual masterpiece (which is your dissertation) takes a lot of time, intellectual creativity and innovation to put together, so you have to be truly passionate about that,” Lee says.

Erin Skelly, a graduate admissions counselor at the IvyWise admissions consulting firm, says when a Ph.D. students struggles to complete his or her Ph.D. degree, it may have more to do with the student’s academic interests or personal circumstances than his or her program.

“The time to complete a Ph.D. can depend on a number of variables, but the specific discipline or school would only account for a year or two’s difference,” she wrote in an email. “When a student takes significantly longer to complete a Ph.D. (degree), it’s usually related to the student’s coursework and research – they need to take additional coursework to complete their comprehensive exams; they change the focus of their program or dissertation, requiring extra coursework or research; or their research doesn’t yield the results they hoped for, and they need to generate a new theory and conduct more research.”

Skelly warns that the average completion time of a Ph.D. program may be misleading in some cases, if the average is skewed based on one or two outliers. She suggests that instead of focusing on the duration of a particular Ph.D. program, prospective students should investigate the program’s attritition and graduation rates.

“It is worthwhile to look at the program requirements and the school’s proposed timeline for completion, and meet current students to get their input on how realistic these expectations for completion are,” Skelly says. “That can give you an honest idea of how long it will really take to complete the program.”

Searching for a grad school? Access our  complete rankings  of Best Graduate Schools.

How Many Years Does it Take to Complete a PhD?

A PhD is one of the most distinguished academic awards in the world. Here's everything you need to know about doing a PhD.

• Student Tips

A PhD is one of the most distinguished academic awards in the world, but what does it actually take to be able to call yourself a Doctor of Arts or Science? How much work is really involved? Are PhD degrees as tough as everyone says? And, most importantly, how long does it take to get one and will it all be worth it in the end? With all those questions in mind, here's everything you need to know about doing a PhD.

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Here are the key things you should know:

How long does it take to get a PhD?

A PhD usually takes between 3-6 years to complete. The exact number of years depends on the discipline and country you're studying in.

How long does it take to get a PhD in psychology?

Most doctorates in psychology take 5-8 years of continuous full-time study.

Why should I do a PhD?

People are inspired to complete a doctorate for many different reasons. For some, it is the biggest step towards a long and successful career in academia. For others, a PhD is an excellent way to deepen their research into a specific field, which may lead to some very innovative and lucrative commercial solutions. In fact, some of the most revolutionary technologies and companies began life as a post-doctoral research project. Google founders Larry Page and Sergey Brin met while studying PhDs at Stanford University , while work by physicists Andre Geim and Kostya Novoselov at The University of Manchester led to the discovery of graphene -- an atom-thin material that is incredibly strong and extremely conductive. Geim and Novoselov were both established professors when they joined the Manchester faculty, but a team of dedicated PhD students supported their work, which went on to win the Noble Prize in Physics in 2004.

A number of students simply enjoy the scholarly life and enroll for the sheer pleasure of learning. These naturally curious people might not have any specific career goals in mind, but a PhD is the best way to satisfy their thirst for knowledge.

What are the benefits of doing a PhD?

First of all, you get to call yourself a ‘doctor’, which is pretty cool (although it might be worth keeping it quiet if you run into some kind of medical emergency). Having this title means you can change your title at that bank, with the credit card company, and on your passport. And if anyone asks why you can call yourself a ‘Dr’ without knowing one end of a scalpel from the other, tell them that doctor comes from the Latin word which means 'distinguished teacher.' It became a common medical term after physicians were required to complete a doctorate before becoming licenced medical practitioners.

But aside from the prestige and a few opportunities to show off, being an academic ‘Dr.’ has several practical benefits. To start with, it is a prerequisite for anyone who wants to build an academic career. And even if you decide against a career in the academy, having a PhD on your CV will impress nearly all potential employers.

Finally, a PhD is lots of fun! Obviously it involves years of hard work, but you will also be spending time with people who share your interests and passions. Also, there are plenty of travel opportunities for many PhD students. You could find yourself at a prestigious conference surrounded by the leading experts in your subject, or working on a research project in some of the world's most exotic locations.

How long does it take to complete a PhD?

This depends on where or what you study, as The Guardian explains , but you'll need to dedicate at least three to four years towards earning a doctorate. Most PhD students in the UK take three to four years to complete a PhD , while in the US the median amount of time it takes students to complete their doctorate is 5.8 years . It will also depend on which university awards the doctorate. The timescales also vary quite dramatically from country to country, so international students should always do plenty of research before applying for a PhD abroad.

Highly technical subjects such as physics often require years of research, meaning some PhD students study for up to eight years before earning ‘Dr’ status. The same goes for subjects such as psychology , where students have to complete long residences in a medical setting. And if you're interested in a PhD in architecture, you are going to be in it for the long haul. A doctorate in architecture takes around ten years! The biological sciences tend to require the least amount of time.

Is there any way I can qualify sooner?

A select group of students complete their PhDs in two years, while a tiny number of elite students can get it done in 12 months. It's hard to overstate how rare and impressive this is, but it is always a possibility. The key to a fast-track PhD is building up a strong academic CV before you even start. Getting your work published in journals as a master's student is one of the best ways of alerting professors to your academic qualities.

And if you do manage to become a Dr in two years or less, you will find yourself in some very illustrious company. Professor Stephen Wolfram graduated with a degree in particle physics from the California Institute of Technology after spending less than a year on campus. He was only 20 at the time and had previously dropped out of Oxford aged just 17 because the lectures weren't challenging enough! And his subsequent achievements prove this wasn't just down to youthful arrogance. He went onto to create a whole new computing programming language, as well as revolutionary theories in algebra and artificial intelligence.

Can I study part-time?

Given the huge commitment involved in doing a PhD, many students opt for part-time study . The majority of part-time PhDs are in education , medicine, social studies and veterinary sciences. They usually take around six-to-eight years to finish, but there are plenty of benefits to taking the long road to your doctorate.

Part-time students dedicate between 20-30 hours a week to their studies, which leaves plenty of time for work or raising a young family. It is also the best option if you are studying pleasure rather than with a specific career goal in mind. A full-time PhD can be a stressful experience -- tight deadlines and demanding supervisors might suck away some of the fun for those of you who enjoy a more relaxed approach to learning.

As an international student, what happens when I finish my PhD?

Many universities have extension schemes in place designed to help international students remain in the country after their final thesis has been approved. These extensions help recent graduates find work or continue their academic careers. They usually last for up to 12 months, after which you will need to make additional arrangements if you would like to stay in your host country. Universities typically sponsor these extension schemes, and you will need to match very specific criteria requirements before you can apply. Again, this varies depending on where you study, so speak to whoever administers the program for more information.

I'm not sure I want to do a PhD, should I just do one anyway?

Every major decision we make requires careful consideration. This approach will naturally give rise to certain doubts, fears, and insecurities. We can usually overcome them with a little bit of forward-thinking or at least reassure ourselves that we are ready for whatever challenges may come our way. A PhD is a serious commitment that requires dedication, commitment, a lot of brainpower, and, most of all, as the London School of Economics explains , passion. Studying for a doctorate is a real labour of love and should never be approached half-heartedly. And if none of that scares you off, then you are probably the perfect PhD candidate!

PhDs take time, effort, and an enormous amount of hard work. But they are also one of the most rewarding things you can do, especially if you're interested in the world of academia. So get ready for more than a few tough moments -- but remember that you will come out of the other side as a highly qualified specialist (indeed, a ‘doctor’!) in the specific subject you are most passionate about!

Read more on getting a PhD:

The Ultimate PhD Degree Guide for International Students

Get paid to study: phd funding opportunities.

• PhD Scholarships Directory for International Students

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How Long Does It Take to Get a PhD?

If you aspire to rise to the top of your field, then you may have your sights set on a PhD.

Earning a doctoral degree can be a years-long process, but choosing an accelerated doctoral online program may help you complete your program more quickly.

Whether you’re wanting to earn one of the highest paying doctoral degrees or you have a specific one in mind, this guide can help walk you through how long it takes to complete your PhD program.

Editorial Listing ShortCode:

For a traditional, campus-based PhD program, the average time to finish a PhD is 8 years. Fulfilling the program’s requirements will often demand a serious investment of your time.

Even still, some people are able to finish their programs in just 3 to 6 years. Multiple factors may influence the overall length of your program.

Required Credit Hours

Many PhD programs require you to earn 120 credit hours before entering the exam and dissertation phases.

Fortunately, there are PhD programs without such high credit-hour demands. For example, at some universities, you may earn a PhD with only 60 credit hours.

Full-Time vs. Part-Time Schedule

Enrolling in a doctoral program part-time may allow you to keep up with your regular job. You’ll have to decide whether you prefer the flexibility of part-time schooling or the faster schedule of full-time studies.

Final Project Requirements

Many PhD programs end with the completion of a dissertation. This assignment may take years to complete, so PhD students often end up in the all-but-dissertation (ABD) phase for quite some time.

University Scheduling

Some schools promote their ability to help you through the PhD process faster than normal. Accelerated class schedules with eight-week online courses may speed your studies along. Focused attention from dissertation advisors may help as well.

PhD Program Components

Before you enroll in a PhD program, it’s important to know some of the basic requirements:

Prerequisites

Most schools require you to already hold a master’s degree, but some offer bachelor’s-to-PhD programs.

Length to Completion

On average, it takes eight years to earn a PhD. Even still, completing doctoral coursework and a dissertation in three to four years is not unheard of.

Topic of Interest

PhD stands for Doctor of Philosophy, but that doesn’t mean you’ll be getting a philosophy degree. Your field of study will depend on your interests and the programs that your university offers. You may tailor your doctoral focus though your choice of a dissertation topic.

Steps to Completion

You’ll take advanced classes before sitting for comprehensive exams. After passing your exams, you’ll likely begin working on a dissertation. You must defend your dissertation before finishing your program.

Doctoral studies begin with a series of classes through which you may increase your knowledge of your field of study and learn about conducting research. These are advanced classes, so they should be more in-depth than the ones you took during your undergraduate and master’s programs.

The number of courses that you need to take can vary significantly. It’s not uncommon for PhD programs to require 120 credit hours of coursework. That amounts to about 40 classes.

At other schools, the requirements are lower. Your university’s program may involve just 60 credit hours or, possibly, even fewer. A less intense course load may significantly slash your time to completion.

Your university may require you to maintain a GPA above a minimum threshold. An unsatisfactory GPA may keep you from moving on to the next step of the PhD process.

Comprehensive Examinations

Universities often require students to demonstrate their readiness for a doctoral project before advancing to the next stage of their studies. Readiness is proven through comprehensive exams , which may also be known as:

• Preliminary examinations
• Major field examinations
• General examinations

Often, comprehensive exams take the form of written or oral tests. In other situations, faculty may assess students’ readiness on the basis of a portfolio evaluation or a written paper.

Dissertation and Defense

A dissertation, also known as a graduate thesis, is a body of work that presents original research in your field. This manuscript focuses on a unique idea and includes evidence to support your thesis. During your doctoral studies, there are classes designed to help prepare you for your dissertation work.

The dissertation process may take several years. Once your manuscript is complete, you must defend it to the doctoral program faculty. After your defense, you may need to do further work on your manuscript, or the committee may decide that your dissertation is complete.

Not all programs require a dissertation. Instead, there may be an alternative doctoral project. Although both dissertations and capstone projects are rigorous, projects can sometimes be completed within a shorter time frame.

Average Time to Complete PhD by Field of Study

Students in some disciplines usually take a lot more time to finish their doctoral work than students in other fields.

If you’re studying in the following scientific fields, you may be more likely to earn your on-campus degree in seven years or less:

• Physics — average of five years
• Psychology — average of five to seven years

On the other hand, if your field of study relates more to the humanities, your on-campus degree program may take longer:

• History — average of eight years
• English — average of eight years
• Education — average of 13 years

These are the traditional figures. There are ways to finish faster.

Why Does It Take So Long to Finish a Traditional PhD?

Some schools require doctoral students to take around 40 classes, which, in a traditional on-campus setting, may take years. After completing the coursework, you must write your dissertation and defend it. The dissertation process alone might take multiple years.

Doctoral programs online may help shorten the PhD process to three or four years. Fewer credit hours may be required, and the classes may be delivered in an accelerated format.

Schools with an emphasis on quick doctoral programs may also offer dissertation advisors to efficiently guide students through that phase. Alternatively, some universities allow students to complete capstone projects that don’t take as long as dissertations.

Getting a PhD Online vs. Campus

Online education has changed students’ options for earning a PhD. These days, aspiring students may choose whether to attend classes on a college campus or online.

Traditional programs may require you to relocate to the university’s campus and attend school full-time. On average, it takes just over eight years to complete those programs. The benefits of choosing an online school instead may include:

Faster Progress

Accelerated eight-week courses may allow you to finish your course load sooner. You may complete your entire program in just three or four years.

Multiple Start Dates

Online programs often let you join throughout the year, so you don’t have to put your studies on hold until the fall semester.

Flexibility

Not being required to move to campus or come to class at set times may allow you to work your studies around your schedule.

Equal Status

Online programs are just as rigorous as on-campus ones. As long as your university is accredited, your degree will be just as valuable as one from a traditional university setting.

Cost-Savings

Finishing your doctoral studies faster may mean that you pay less tuition.

How to Finish Your PhD in Less Time

Although you can’t earn a doctoral degree overnight, you shouldn’t have to spend the majority of your working years striving toward PhD-completion. The following tips for accelerating the PhD process may help you finish your studies more quickly than the average doctoral student.

1. Use What You Already Know

Every school requires a minimum number of credit hours that you must earn in the pursuit of your degree. To help you meet this threshold, some schools will allow you to transfer in credits from other doctoral programs. Universities may also give you credit for your professional experience. Reducing your class load may save you both time and money.

2. Look for Short Classes

Accelerated course schedules are one of the best ways to speed through the degree process. Every eight weeks, you’ll begin a new set of classes. Over the course of a year, there may be five different sessions during which you can take classes.

3. Work on Your Dissertation Throughout the Program

Traditionally, dissertation work begins once the classroom portion of your studies is over. Quick doctoral programs may allow you to begin the dissertation process while you’re still taking other classes. This approach, known as an embedded dissertation, may reduce the likelihood that you’ll drop out before finishing your final project. It might also speed up your doctoral timeline.

4. Ask for Help

A lack of support can lead some doctoral students to drop out. On the other hand, having a good support system can help you push through and finish your program more quickly. Build a team of family, friends, and academic mentors who can encourage you, guide you, and lend practical help when you’re feeling overwhelmed by school.

Why Get a PhD?

You may need to earn a doctoral degree to achieve your career goals . For example, if you want to become a clinical psychologist, this level of study is essential. Many scientific and research positions require doctoral studies. University faculty typically need to hold terminal degrees as well.

Even if a doctorate is not a requirement for your desired line of work, it may help you achieve greater success. You might be granted higher levels of responsibility, and you may earn more money. In some fields, those who hold PhDs make around 20% more than those with master’s degrees, according to the Bureau of Labor Statistics .

Do You Have to Have a Master’s Degree to Get a PhD?

Many schools consider a master’s degree an essential prerequisite for PhD admission. If you don’t already have a master’s degree, a bachelor’s-to-doctorate program may allow you to earn a master’s and a PhD for less time and money than it would take to pursue them separately.

How Long Does It Take to Get a PhD After a Master’s?

You may be able to complete your doctoral program in three to four years if you opt for an accelerated online program. On average, traditional on-campus PhD programs take around eight years to complete.

How Hard Is It to Finish a PhD?

Doctoral studies are challenging. That shouldn’t come as a surprise; if doctorates were easy to acquire, nearly every college graduate would end up with a PhD behind his or her name.

Approximately 50% of students who begin a PhD program don’t end up finishing. Many quit within two years of starting. Another large portion gives up upon reaching the dissertation phase.

Although all PhD programs are challenging, the flexible nature of online programs may help you find success. Choosing a doctoral track that doesn’t require a dissertation may help as well.

What Is the Easiest PhD to Get?

All PhD programs are demanding, but you might have an easier time if you select a program that aligns with your interests and your career goals. The flexibility of online study may help your doctoral program seem less burdensome. In addition, capstone projects are sometimes easier than writing dissertations.

If earning a doctoral degree in a short time frame is important to you, then consider the many potential benefits that online programs have to offer. Within just a few years, you may be able to place the letters “PhD” at the end of your name.