phd how to study

The Savvy Scientist

Experiences of a London PhD student and beyond

PhD FAQs – A Complete Beginner’s Guide to Doctoral Study

Tempted to do a PhD but have lots of questions? Hopefully this collection of popular PhD FAQs will help you to tick a few off the list!

Note – If you’re already sure that you want to do a PhD, and are looking for guidance on the applications process, check out my post on How to apply for a PhD which includes advice from successful PhD applicants. My post-PhD reflections on the things I regretted from my own PhD may be useful for you too, you can find that post here .

Let’s start with the absolute basics of PhDs!

What does PhD stand for?

PhD stands for Doctor of Philosophy. Doctor of Philosophy ? No matter which subject area your PhD is in you’ll become a Doctor of Philosophy because philosophy derives from Greek to mean “Love of wisdom” which make a bit more sense.

What is a PhD?

A PhD is a type of research degree classified as a doctorate. You get a PhD by doing original research into a topic, typically for at least three years.

There are loads of other types of doctorate and a PhD is simply the most common. EngD is another which is relatively common for industry-funded engineering students here in the UK.

PhD & DPhil what’s the difference?

There is no real difference between a PhD and DPhil, they’re both Doctor of Philosophy qualifications. A small number of historic institutions in the UK such as Oxford and York offer DPhils but the degree itself is equivalent.

How common are PhDs amongst the population?

Approximately 1% of the working population (25-64 years old) have a PhD. This varies a lot by country:

Can you call yourself Doctor with a PhD?

Yes you can. Though to avoid confusion with medical doctors, rarely will PhD-holders use the “Dr” title outside of their workplace.

Sometimes PhD-holders will add the abbreviation PhD after their name if they want to make it clear they are a non-medical doctor, for example “Jeff Clark PhD”.

What have I done about my title since getting my PhD? Nothing so far!

Why do a PhD?

Unlike a lot of other degrees, most PhD students get paid to study . Read more in the finances section below.

There are lots of potential reasons to want to do a PhD. The PhD students from our monthly PhD Profiles series said the following:

Sara found research the most enjoyable part of her undergraduate degree and a PhD was a way to carry on with research.

Ornob wants to pursue a career in evolutionary biology so began with a PhD in the field.

Vivienne has aspirations to be a professor so a PhD is a job requirement to progress in academia.

Jeff (me!) had an interest in the field and enjoyed research. I wrote a whole post with a deep dive on why I decided to do a PhD here .

Floor had enjoyed research during her Masters and didn’t think that she wanted a career in industry, so decided to do a PhD.

It’s important to mention that you don’t need to have a desire to stay in academia to do a PhD. In fact, even if you do want to go into academia afterwards, it’s probably good to know early on just how competitive it can be. Many people sadly cannot make a career out of academia long term.

Enjoy the subject matter and want to spend a few years researching it? That is reason enough to do a PhD. I’ve also now written a whole post about the benefits of having a PhD .

Applying for a PhD

Do you need a masters degree to do a phd.

No you don’t necessarily need a Masters degree to do a PhD as long as you can demonstrate you’d be suitable for a PhD without it.

For a more in-depth answer see the separate post here :

Can You Get a PhD Without a Master’s?

If you don’t have a Masters, I’d recommend checking out Centres for Doctoral Training (CDTs) which offer combined Masters + PhD courses. We have discussed CDTs with a graduate in Floor’s post here .

What grades do you need to do a PhD?

Entry requirements for PhDs can vary. In regards to the UK system usually you’d generally be expected to have at least a 2:1 from your undergraduate degree, plus some research experience.

My experience : I (narrowly) got first class honours in my undergrad (MEng) which certainly does help. But if you can demonstrate aptitude in research you usually don’t need a 1:1. It would be expected for you to have done well in any research projects. If you can get your name on a publication then even better!

The easiest way to find out what is expected is to check the PhD advert for entry requirements. For details on applying for a PhD, including how to find PhD adverts, check out my guide here :

How to apply for a PhD

I work in industry, can I come back and do a PhD?

Absolutely! I worked for almost four years between finishing my first degree and starting my PhD.

A PhD is more similar to a job than any other point in your education, so if you’ve spent time in a structured role it can provide you with a good work ethic. If your time in industry adds relevant skills and experience to your application, even better!

I’ve met loads of people older than me who are pursuing PhDs. If it’s your dream, it’s never too late to start a PhD!

What is the social life of a PhD student like?

Let me get this out the way first: PhD students should be able to have a life outside of the lab! If a PhD student has no time away from research I would personally suggest that they were doing things wrong.

Even if you really enjoy your project, it is good for your mental health to have a social life!

No matter the size of your research group there are often departmental and university-wide events. Plus, besides everyone you may meet through your research and department, PhD students can still join societies and sports clubs through the students’ union. I spent one of my birthdays during my PhD on the beach in Morocco with the surf club, don’t let being a PhD student put your off getting involved!

Check out the full post I’ve written: Do PhD Students Have a Social Life? Sharing My Experiences Making Friends and Avoiding PhD Loneliness

If you do go on to do a PhD, make sure to make the most of all the opportunities ! Your time as a PhD student is fantastic for personal growth.

How much holiday do PhD students get?

Sadly unlike undergraduates, PhD students don’t follow fixed semesters. This means no more three month long summer holiday, sorry!

However most departments recommend PhD students take 7-8 weeks of holiday a year , which is more than practically any job outside of academia.

I kept track of all the time off I took during my PhD and you can find the details here , including a month by month breakdown:

Do PhD Students Get Holidays? Sharing How Much Annual Leave I Take

Getting a PhD

How much work is a phd.

For a month I tracked how many hours I was working and what I was working on, so you can see a breakdown of my calendar here . I found I was working for roughly 40 hours a week. Now that I’ve recently finished my PhD, I’d say that that amount of hours was pretty representative of the whole PhD.

How Much Work is a PhD?

I do of course know some people who worked much longer hours, but most PhD students were on a similar schedule to me. Working roughly 9-5 on weekdays. Treat it like a job and you’ll be fine. PhD students don’t need to be slaving away long hours.

I managed to be strict with my time, largely avoiding work late nights or going in at the weekends. One of the main perks of doing a PhD is that you have autonomy and can be flexible with when you work. As long as you get the work done, any reasonable supervisor won’t mind when you’re there.

Yes I’ve heard stories of PhD students having to clock in and out with an expectation that they spend a certain number of hours in the office. I personally think this is stupid and doesn’t build trust. Try to speak to current PhD students from the group when choosing a supervisor .

How is a PhD assessed?

What you submit at the end of your research varies between universities and countries. Sometimes it’s a thesis and other times it can be a bunch of published papers. In all situations you give some kind of presentation and answer questions about your work.

In the UK you usually submit a thesis in preparation for a viva voce . The viva is an oral exam where you discuss your research with several academics and at least one will be an expert in your field. My viva wasn’t as scary as I thought it might be, but nonetheless it was five hours ( FIVE HOURS! ) long. At the end of your viva you’ll get told the outcome of your PhD with any changes to be made to your thesis.

There is often no requirement , to publish your work in journals during a PhD in the UK but it does help.

In other countries you may have to publish a certain number to pass your PhD and effectively these can be submitted instead of the thesis. This approach makes much more sense to me.

How long does it take to get a PhD?

In the UK, typically between three and four years to complete your research and submit the thesis. It can then take a few months for the exam (viva voce) to take place and then for any corrections to the thesis to be made.

Nosey about my PhD? For me personally, I started the PhD on 1st October 2016, submitted my thesis on 17th February 2020, had the viva on 25th March, submitted my minor corrections on 30th March and had the email to say it was officiated on 1st April 2020. Yep, April Fool’s Day…

When you realise your degree certificate will forever say your PhD was awarded on April Fools Day! #academiclife @imperialcollege pic.twitter.com/hKsGFyuc0x — Jeff Clark (@savvy_scientist) April 14, 2020

We cover all the stages of a PhD here, including putting the length of a PhD in the perspective of a whole career:

How Long Does It Take To Get A PhD?

Are PhDs really difficult?

No, well not how you might think.

You don’t need to be a genius, but you do have to be smart with how you work. Here I go into how a PhD is pretty different to all the prior years spent in education:

How Hard is a PhD?

Check out my new post covering academic challenges and failures relating to my own PhD: Overcoming Academic Challenges and Failure During a PhD

Money-Related Questions

How much does a phd cost.

If you have funding, which is explained below, all your fees are paid for by the funding source. If you are looking to self-fund, then you’ll have to pay bench-fees/tuition fees, which are usually approximately £4,000 a year for home students in the UK.

Fees vary massively depending on both the country the PhD work takes place in and where you’re from. For example, I believe Australian universities charge around $100,000 in fees to overseas PhD students. Of course ideally you have funding which covers both this and pays a stipend!

Do PhD students pay taxes?

In the UK, PhD students do not pay income tax, national insurance, council tax and student loan repayments. This means that if you can secure funding, even though you may earn less than friends in typical jobs, you get to keep all your earnings!

Do PhD students get paid?

Most PhDs, at least in STEM (science, technology, engineering and maths) get a stipend: basically a tax-free salary.

How much do PhD students get paid?

At the time of writing, most PhD students in the UK get around £16,000 a year . Doesn’t sound like a lot, but:

• As mentioned above, you don’t pay income tax, national insurance, council tax or make any student loan repayments. My most popular post is this one , comparing the income of PhD students vs grad jobs and the difference really isn’t that big. Plus it’s only for 3 to 3.5 years!
• You’re getting paid to learn science, working on something you’re really interested in. It’s amazing.
• You have a lot more freedom than practically any “proper job”.
• You’re getting paid, to be a student…

PhD Salary UK: How Much Do PhD Students Get Paid Compared to Graduates?

In summary, PhD stipends are really not that different to grad starting salaries. Please don’t be put off from a PhD simply because for a few years you might be earning a bit less than if you were working in another job.

Depending on what you want to do with your career, having a CV may lead to higher salaries. What is 3 years of lower wages out of a 40+ year career? The answer: nothing!

Where do I find PhD funding?

Getting funding will likely be the biggest hurdle for you to secure a PhD. I have a post here detailing the different types of funding and how you can find a project with funding attached.

How to Find PhD Funding in the UK

Can you self-fund a PhD?

Yes you can self-fund a PhD, and some students are in a position to do so. Just be careful that you account for university fees and not just your living costs.

Are you allowed to have another job at the same time?

Most universities encourage you to get involved with work within your department as a graduate teaching assistant (GTA). Some countries even insist that you work a certain number of hours as part of a contract for your monthly stipend.

Working as a GTA you might be invigilating exams, helping in tutorials, marking coursework etc and at Imperial you usually earn around £15-£26 an hour.

If you’re looking to work a full time job in tandem with your PhD (and doing the PhD full time), it is best checking your university’s policy. Some may have regulations against you working over a certain number of hours which could impede you from concentrating on the PhD.

There are extra ways to make money on the side which I address here :

How to Earn Money Online for Students

Can you get a mortgage as a PhD student?

Since I did my PhD in London I didn’t even consider buying somewhere during my PhD. I’m not interested in being tied into a massive mortgage for 25 years to buy a shoebox!

If I’d accepted my PhD offer for a CDT at Leeds I certainly would have tried to buy somewhere with my partner. I found this page useful when doing research. Buying a property with a partner who has a normal job would definitely make the mortgage application a whole lot more successful.

Will a PhD help your career?

This depends on what you want to do with your career. Some example scenarios:

• Staying in academia – a PhD is usually required
• Certain technical jobs in industry – a PhD may be required or a big bonus
• Non-technical jobs – a bonus

I do not imagine any scenarios where having a PhD is worse than not having one. It is true though that for certain careers there may be other things you could do which would be a better use of your time, for example gaining more direct work experience.

If you want to do a PhD that shouldn’t stop you though, and considering the length of your career taking a few years out for a PhD is inconsequential.

Whichever career path you fancy taking, if you are at all interested in doing a PhD I think you should at least apply.

PhDs in London

Can someone afford to live in london as a phd student.

Yes! I lived in London for my PhD and actually was able to save money every single month while taking many holidays and not living in a tent.

I have a few posts sharing my experiences living in London which you may find useful:

For a month last year I tracked all my expenses to get an idea of my costs living in London as a student, you can find it here .

Sharing my monthly living expenses as a student in London: September 2019

Related to reducing costs, I learned to cycle in London and loved it. It saved me about £100 a month too!

Learning to cycle in London: my first 1000 miles

On top of that, for the whole of 2019 (third year PhD) I tracked my money, and the report is here :

My personal finances report for 2019

Where is good to live in London?

I’ve lived in three different houses during my PhD in London and have a pretty good idea now of good places to live in London. You can read this whole post talking about living in London as a student and the associated costs including a breakdown of rent :

London student accommodation: Breaking down the cost of living in London for students

Bonus: Read the journeys of PhD students

Before I started my PhD I had a ton of questions and nobody who I could ask about their experience. The reality is that many of these PhD FAQs have a variety of answers as everyone’s PhD story is different. Therefore if you’d like to hear first hand from people who are going through the journey check out my series of PhD profiles , with a new profile every month. You can also discover some of their top tips for applying!

If you’d like personalised help with your PhD application I am now starting to offer a small number of one-to-one sessions. Please contact me to find out more or click here to book a call.

Is there anything else you’d like to know to help with a potential PhD application? Let me know and I’ll write about it! You can subscribe to stay up to date here:

Share this:

• Click to share on Facebook (Opens in new window)
• Click to share on LinkedIn (Opens in new window)
• Click to share on Twitter (Opens in new window)
• Click to share on Reddit (Opens in new window)

Related Posts

The Five Most Powerful Lessons I Learned During My PhD

8th August 2024 8th August 2024

5th February 2024 4th July 2024

The Benefits of Having a PhD

7th September 2022 30th January 2024

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Notify me of follow-up comments by email.

This site uses Akismet to reduce spam. Learn how your comment data is processed .

Privacy Overview