While nearly half of all doctoral candidates in the United States will not finish their degrees, a closer look at the numbers reveals a complex story of discipline, funding, and determination that every prospective PhD should know.
Key Takeaways
- In the United States, the overall PhD completion rate within 10 years is approximately 56% across all fields
- For humanities PhD programs, the 10-year completion rate stands at 48%, lower than STEM fields
- STEM PhD completion rate within 7 years is 65%, compared to 55% overall
- Average time to US PhD degree is 5.8 years
- Humanities PhDs take 7.1 years on average to complete in US
- Engineering PhDs average 5.6 years
- 55% of US PhD recipients are female as of 2021
- International students comprise 37% of US PhD recipients in science/engineering
- 12% of US PhD recipients are Hispanic/Latino
- Average PhD student debt in US is $25,000
- 25% of PhD students receive full funding, 40% partial
- NSF fellowships awarded to 2,000 PhD students annually
- 75% of new PhDs in US academia get tenure-track jobs, no: 15%
- Median starting salary for PhD in industry $110,000 in US STEM
- 50% of humanities PhDs in non-academic jobs 5 years post-PhD
PhD completion rates vary significantly by country, field of study, and personal circumstances.
Completion and Attrition Rates
1In the United States, the overall PhD completion rate within 10 years is approximately 56% across all fields
Verified2For humanities PhD programs, the 10-year completion rate stands at 48%, lower than STEM fields
Verified3STEM PhD completion rate within 7 years is 65%, compared to 55% overall
Verified4Attrition rate for PhD students in social sciences is 45% before completion
Directional5In Europe, the average doctoral completion rate is 80% within 5 years in top universities
Single source6US PhD attrition in first year is 10-15%, rising to 50% by year 5
Verified7Female PhD completion rate in US is 58%, slightly higher than males at 54%
Verified8In biomedical sciences, completion rate is 70% within 6 years
Verified9UK PhD completion rate improved to 81% from 74% in 2010-2020
Directional10Engineering PhD completion rate in US is 62% within 9 years
Single source11Overall US doctoral attrition rate is 50%, with 20% dropping out after qualifying exams
Verified12In Australia, PhD completion rate is 84% within 4 years full-time equivalent
Verified13Life sciences PhD completion in EU averages 75%
Verified14Minority students in US PhD programs have 10% lower completion rates
Directional15Part-time PhD completion rate is 30% lower than full-time
Single source16In Canada, doctoral completion rate is 76% within 7 years
Verified17Physics PhD completion rate in US is 67%
Verified18Pandemic increased PhD attrition by 5-10% in 2020-2021
Verified19Economics PhD completion rate is 55% within 6 years
Directional20In Germany, PhD completion rate is 85% for structured programs
Single source21US EdD completion rate is 40%, lower than PhD
Verified22Online PhD programs have 25% completion rate
Verified23In India, PhD completion rate averages 60%
Verified24Computer science PhD completion is 68%
Directional25International students have 5% higher completion rates in US STEM
Single source26History PhD completion rate is 45% within 10 years
VerifiedCompletion and Attrition Rates Interpretation
While the American dream of earning a PhD is often a ten-year marathon where only about half cross the finish line, it seems the Europeans have mastered a more efficient five-year sprint.
Employment and Salary Outcomes
175% of new PhDs in US academia get tenure-track jobs, no: 15%
Verified2Median starting salary for PhD in industry $110,000 in US STEM
Verified350% of humanities PhDs in non-academic jobs 5 years post-PhD
Verified4Unemployment rate for new PhDs is 2.1% in US
Directional5Average salary for assistant professor $85,000
Single source680% of STEM PhDs employed full-time within 1 year
Verified7UK PhD graduates 90% employed 15 months post-graduation
Verified8Industry salaries for PhDs 20% higher than master's
Verified935% of PhDs in government/research labs
Directional10Women PhDs earn 92% of male salaries post-PhD
Single source11Economics PhD median salary $120,000 first job
Verified1260% of EU PhDs in private sector
Verified13Australia PhD unemployment 3%, median salary AUD 90,000
Verified14Canada PhD salary premium 40% over bachelor's
Directional1525% of US PhDs in adjunct positions initially
Single source16Biotech PhD starting salary $105,000
Verified17International PhDs have 85% employment rate in US
Verified18Humanities PhD salary $70,000 median academia
Verified1970% of engineering PhDs in industry, salary $115,000
DirectionalEmployment and Salary Outcomes Interpretation
The academic dream factory churns out more baristas than professors, but a PhD still generally punches your ticket to a stable, well-paying job, provided you’re willing to let the data, not dogma, guide your career path.
Funding and Financial Aspects
1Average PhD student debt in US is $25,000
Verified225% of PhD students receive full funding, 40% partial
Verified3NSF fellowships awarded to 2,000 PhD students annually
Verified4Average RA/TA stipend $25,000/year for STEM PhDs
Directional560% of US PhD students receive institutional funding
Single source6UK PhD studentships cover fees + £15,000 stipend
Verified7EU Marie Curie fellowships fund 10,000 PhDs yearly, €4.5B budget
Verified835% of PhD students work off-campus jobs
Verified9Average cost of PhD program $50,000 unfunded
Directional10NIH funds 80% of biomedical PhDs via training grants
Single source11Australia RTP scholarships: $28,000/year for 20,000 students
Verified1215% of PhDs self-fund entirely, higher in humanities
Verified13Canada NSERC/SSHRC fund 5,000 PhDs/year at $35,000
Verified14Germany DAAD scholarships for 4,000 internationals
Directional15PhD tuition remission in 90% of US programs
Single source16India UGC fellowships: 30,000 at ₹31,000/month
Verified17Debt-free PhD graduation: 70% in STEM vs 40% humanities
VerifiedFunding and Financial Aspects Interpretation
While PhD students face a financial gauntlet that often results in crippling debt, a complex global patchwork of funding—from full fellowships to half-measures and teaching stipends—means the path to a doctorate is essentially a high-stakes gamble where your field of study and postal code heavily influence whether you graduate as a scholar or a debtor.
Student Demographics
155% of US PhD recipients are female as of 2021
Verified2International students comprise 37% of US PhD recipients in science/engineering
Verified312% of US PhD recipients are Hispanic/Latino
Verified4Black/African American PhD recipients are 7% of total
Directional5Asian Americans earn 10% of US PhDs
Single source6Average age at PhD completion in US is 31.4 years
Verified745% of UK PhD students are international
Verified8Women are 52% of EU doctoral candidates
Verified9In Australia, 50% PhD students female, 35% international
Directional10First-generation college students are 25% of PhD enrollees in US
Single source11Canada PhD students: 52% female, 24% international
Verified12STEM PhD fields have 28% women in US
Verified13Humanities PhD: 58% female
Verified14Over 50% of PhD students in social sciences are over 30
Directional15Germany: 48% female doctoral students
Single source16India PhD enrollment: 45% female
Verified17US PhD recipients with disabilities: 5%
Verified18Economics PhD: 33% female, 45% international
Verified19Underrepresented minorities 18% of US STEM PhDs
DirectionalStudent Demographics Interpretation
The data paints a portrait of modern academia as a complex, globalized, and still-evolving pursuit where women now earn the majority of doctorates overall, yet significant gaps persist in specific fields and for underrepresented groups, all while the journey to a PhD increasingly attracts a diverse, international, and often older cohort of scholars.
Time to Completion
1Average time to US PhD degree is 5.8 years
Verified2Humanities PhDs take 7.1 years on average to complete in US
Verified3Engineering PhDs average 5.6 years
Verified4Biological sciences PhD time to degree is 5.9 years
Directional5Social sciences average 6.5 years for PhD
Single source6Median time to chemistry PhD is 5.7 years in US
Verified7UK PhD average duration is 3.8 years full-time
Verified8Part-time PhD in EU takes 6.5 years on average
Verified9Economics PhD time to degree 6.2 years
Directional10Physics PhDs average 6.0 years
Single source11Pandemic extended PhD timelines by 6 months on average
Verified12Female STEM PhDs take 0.2 years longer than males
Verified13Australia PhD median time 3.5 years full-time
Verified14Computer science PhD 5.8 years average
Directional15History PhD 8.2 years median time
Single source16Biomedical PhD time increased to 6.2 years post-2010
Verified17Canada PhD average 4.8 years
Verified18EdD programs average 3.5 years part-time
Verified19Psychology PhD 6.7 years
Directional20Germany individual PhD 5.8 years, structured 3.9 years
Single source21India PhD average 5 years
Verified22Education PhD 4.9 years US average
Verified23Mathematics PhD 5.9 years
VerifiedTime to Completion Interpretation
Humanities scholars are so busy contemplating the meaning of time that they forget to track it, clocking in at a leisurely 7.1 years while their frantic engineering counterparts, fueled by caffeine and deadlines, practically sprint to the finish line in 5.6.
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