If a student can only study and perform academic tasks, it will be 4 or 5 years. Some finish in less time because they attended courses during undergraduate and/or master studies.

However, finishing fast may not be good. Experience and training are not like fast food.

On the other hand, some people work to support themselves and pay for their studies. Others become ill.

The bottom line is to avoid being judgmental when it comes to the time someone took to obtain a Ph.D. degree.

Frank T. Edelmann In soil science, a doctoral student generally has to conduct field investigations and laboratory work, and in several educational systems around the world, he also has to attend courses and seminars. So the average length of a doctoral (Ph.D.) study is about four years. When I did my Ph.D., some of my colleagues in the institute finished theirs in 5 to 7 years. And I had a friend who completed his Ph.D. at a university down under after 13 years! Of course, it also depends to a large extent on the research topic and coverage as well as the availability of needed facilities and materials.

Dear Victor B. Asio, many thanks for being the first to contribute to this discussion! 13 years is indeed quite extreme!

In my field ( Cellular and Molecular Medicine) it need 5 years on average

Dear Frank T. Edelmann

My thesis in the Pharmacy/ Pharmaceutical Chemistry required five years to be completed.

Regards

PhD in the field of analytical chemistry and chemometrics requires about 3 to 4 years to complete.

Best regard.

Dear Frank T. Edelmann

Thank you also for your kind question.

All the best

Dear Frank T. Edelmann ,

in experimental physics the PhD/ Dr degree is also around 3 to 4 years, as you know mainly depending on more or less the 'luck' of successful experiments.

But I know from former colleagues that some times some additional years may happen.

Best regards

In my doctoral dissertation in physical education and sports science takes 3 years to get them

Dear Frank T. Edelmann although I'm in the final steps to complete my PhD thesis, but I expect it will take about 5 years to be completed.

3-4 years.

It depends on the topic and process of the university and the cooperation of supervisors as well.

Approximately 3-4.

For us, biology, it take 4 to five years.

The duration of the Ph.D in general is between 3 and 6 years maximum. However, it depends on the research disciplines. In the "exact" sciences (mathematics, physics, chemistry, biology, engineering, etc.), the duration is 3 years, sometimes extended to a fourth year. It is the same in my field of research which is management and whose duration varies between 3 and 5 years.

The question is rather vague and therefore difficult to answer. Such as: how much time does it take to get to the city center? I obtained my doctorate after 12 years of teaching, doing research, foreign consultancies etc. etc. With the dedicated help of numerous Master students. So what is my answer? 12 years.

5 years

3 years, my major is cardiac surgery. If the extension will be a very bad record

In France (in my field, chemistry) we are incentivized to finish in three years, some financement issue can arise if we take much more time. again I guess that it is specific to France, often times in my field people would continue there research as a post doc if something needs to be done to complete the pHd project.

Environmental Science, around 3-4 years...

It depends on your work and institution. In Biochemistry it takes around 4-5 years.

Dear Md. Shiblur Rahaman and Avnish Kumar Verma, thank you for your contributions!

Many factors have role in the duration of the PhD study that is include research topic, your experience in the research topic, supervisor, laboratory facilities of the University you want study there, and.....

Of course, depending on the goals of the research project and the availability of what you need, my research took 3 years

Dear Mohammed Ahmad Wsoo and Luay A. Al-Helaly, many thanks. I really appreciate your contributions!

Dear all, if someone is lucky to escape conflicts, conspiracies, and gangs, the PhD take between 3 to 5 years. If not, it will be endless or canceled at the end. It is really a great shame to be in such an environnement. My Regards

In my opinion is 4 to 5 years

My thesis about the antimicrobial effect of ozone as different concentrations on C. jejuni contaminating meat, then about the effect of this treatment on quality of meat such as color, odor, fatty acids profile and other organoleptic characteristics. Finally the effect of this treatment on residual THMs it takes 3 years.

It took me seven year to complete my study in Preventive Dentistry due to some things out of my will , but finally I completed it

All doctoral students last a minimum of 3 years; and in general 06 years the maximum. at least a high level publication is required. the work must be original.

In regulatory texts, it says minimum 3 years. Beyond 3 years, there are exemptions that are made, depending on the progress of the work. On average it is 04 years.

Dear Abdelkader Dehbi, Abdelkader BOUAZIZ, Manal Hadi Kanaan, Raya Al-Naimi and A. Kettab, many thanks indeed for your valuable contributions!

de tres a cuatro años

Dera Loly Erazo Lopez, thank you! This seems to be the average time in various areas of research.

3 to 5 years

Dear Hiten Barman, many thanks for your contribution!

It depends on your topic and the availability of the state-of-the-art research facilities and funds.

Dear Smith B Babiaka, that's certainly correct.

Dear Aneeba Rashid

I guess it is dependent on the following:

--Topic chosen.

--Commitment of the student.

--The university's commitment.

--Supervisors availability to attend to students at the required time.

--Country of study.

The reason for including country of study is because in my own country, our professors have the mentality that you shouldn't have to acquire the PhD easily, thereby downplaying the researchers effort just to elongate the years. I've seen people spend 8years on PhD because of researchers beffort downplay by supervisor. And again, there's the case of strike action

Dear Alli Noah, many thanks for your interesting and insightful contribution!

In Egypt, From 3 years to 5 years.

I did it in 3 years. my major is Accounting, but actually it depends on a set of factors. First of all, your topic and its data avalability. Second, your supervisor. Third, the quality of your publications during this journay.

for the LMD doctorate, it is between 3 and 6 years legally. In reality and on average, it's 04 years. My field is technology.

4 years in an ideal state but can be less or more based on the availability of research facilities and professional supervision

It depends on scientific specialty .. in microbiology it takes 3-4 yesrs.

Dear Nasser Said Gomaa Abdelrasheed, Mohammad A. A. Zaid, A. Kettab, Joan Nyika and Abdulridha Taha Sarhan, many thanks for contributing to this discussion. With 3-4 years you all performed pretty well!

Very good to know the different answers.

Generally in biological field, it takes minimum of 5 years and maximum of about 7 years.

Dear Rabin Thapa, Monika Sk

3 YEARS AFTER MASTER

En général après le diplôme d'ingénieurs ou de maître, il faut au minimum 3 ans révolus. cela veut dire 04 inscriptions académique.

Neurobiology of depression - 2 or 3 years.

In UK 3 years.

Year 1, extensive research training, literature review, design of research questions, method and methodology. Approx 10000-20000 words

Year 2 field work

Year 3 write up results , submission 80,000 words.

There is ongoing research training for anything agreed with supervisor. In research intensive unis always specialist Research

Lawani Mansourou Mohamed, A. Kettab, Alice Câmara and Beverly Dawn Metcalfe: Interesting contributions. Thank you for your answers!

to support a doctorate, you must have a publication with Impact Factor. in many countries, this becomes a source of delay, the doctorate takes 4 to 5 years.

It takes between 3 and 5 years.

In microbiology it takes 3-4 years courses and resesrch

Dear Saad Javed, A. Kettab, Basem Mohammed Al-Sakkaf and Abdulridha Taha Sarhan many thanks for your valuable contributions. It appears that the vast majority of all PhD projects takes 3-5 years.

3 years

Dear Frank

effectively by majority, doctorates last from 3 to 5 years; but here we are talking about an LMD doctorate (License Master Doctorate). There is also the Doctorate in science which lasts between 4 and 8 years. the doctorate in science still works in many countries.

It varies. But generally, it is between 3 and 6 years.

Bayo Olushola Omoyiola thank you! Which field of research are you referring to?

it takes between 4 to 8 years depending upon the topic, student and supervisor.

all newspaper publishers (journals) and all book publishers have their plagiarism detection software. High performance, paid software. it is better to check its articles and documents.

from 3 to 5 years (hydraulic phD in LMD system)

Dear Sikandar Khan and A. Kettab many thanks for your valuable contributions!

In microbiology 3-4 years courses and research

Dear Abdulridha Taha Sarhan thank you! I think this is a very good duration on average.

in legal texts it is 3 to 5 years. but it differs from country to country.

My 04 doctoral students who will support in 2020, we are 04 years old.

3 upto 4 years in mechanical engineering...

Dear A. Kettab and Emad Kamil Hussein many thanks for these valuable informations!

That depends many factors. Most of all depend to your university and faculty arrangements and Conditions. My thesis is defined as interdisciplinary and I think that it takes for 5 years in the most optimistic state.

In microbiology it takes 3-4 years for courses and research.

In environmental engineering, it takes between 4-6 years.

Hello

In legal texts it is 3 to 5 years but according to my experience in the hydraulic field most made 6 to 7 years in the classical system and 4 to 5 years in the LMD system

Kind regards

3-5 years

Minimum 3 years you have to spend in Ph.D. and maximum 6 years you can extend after that you have to re-registered for it.

3 years in my country...some times 4 years

3 years

Dear Omar H. Abdalla

Dear Nazir A. Pala, Sonia Morya, Sura Aldewachi and Anmar Aldewachi many thanks indeed for you valuable contributions!

to support a doctorate depends on 03 main parameters: 1. Will of the candidate. 2. Existing material resources. 3. monitoring of the thesis director. if these 3 conditions are met: 3 years. if these 3 conditions are not met: never

Forever, actually. A PhD (doctoral thesis) is a work for the whole life of a scientist. There are variable conditions and parameters on the side of the students (their relationship to work, commitment, responsibility) and on the side of the activity, productivity of laboratory and professor.

It depends on the subject, 3-4 years, normally.But, here in Algeria, it takes longer, because of lack of material and other social considérations.

Thank you dear dr. for your following

to support a doctorate in 3,4,5 years is very good. But after the doctorate, what to do? what to do?

A. Kettab in our field of research (chemistry) most student apply for jobs in chemical industry after finishing their doctorate. There are a number of smaller chemical companies in our area.

after a doctorate, people want to be a teacher or a researcher. Unfortunately there are still budget line issues.

Dear Dr. Frank T. Edelmann ,,

According to me, PhD took about four years in biological field.

With best regads.

Dear Frank

in science and technology, on average 4 years

Due to numerous experiments PhD in organic chemistry takes 5 years.