Historical Dossier • 20th Century

Franklin D. Roosevelt IQ

US President

Last reviewed: August 2026
Historiometric analysis

Quick Answer

Franklin D. Roosevelt's IQ was never verified by a standardized test. LifeScore's retrospective estimate is 145+, with a cautious working range of 130–155.

145+ is a broad historiometric estimate based on the surviving record, not a measured IQ score.

Evidence status: Very low confidence. No verified standardized IQ result is cited for this profile. Historical achievement cannot be converted into a precise modern test result; this page separates documented evidence from interpretation.

Evidence Behind the Franklin D. Roosevelt IQ Estimate

The estimate is a structured interpretation of the record—not a recovered test score. These are the strongest signals and the reasons for caution.

Evidence considered

  • Documented achievement in us president suggests unusually strong domain expertise.
  • Charismatic leadership, Strategic flexibility, Crisis management are recurring themes in the biographical interpretation.
  • The estimate is intended as a comparison aid, not as a clinical or historical fact.

What the estimate cannot prove

  • No primary standardized test report is available.
  • Achievement reflects education, opportunity, persistence and collaboration as well as ability.
  • Retrospective estimates cannot be compared precisely with modern normed tests.

Franklin D. Roosevelt's commonly discussed IQ is represented here by a retrospective estimate of 145+, not a verified test result. Franklin D. Roosevelt is best known for exceptional charismatic leadership. The useful question is what the surviving evidence shows—not whether a precise modern score can be recovered.

Estimated IQ

145+

Historiometric estimate · What does IQ 145 mean?

Dominant Archetype

The Ruler

Psychological Profile

Charismatic optimism during crisis. High extraversion with strategic flexibility. Concealed disability while projecting confidence.

The dominant archetype here is The Ruler. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is ~145+. This is a rough historiometric estimate based on documented accomplishments and contemporary accounts—not a literal measurement.

Key Behavioral Traits

1
Charismatic leadership

Franklin displayed notable charismatic leadership, a trait that shaped their approach to challenges and opportunities.

2
Strategic flexibility

Franklin displayed notable strategic flexibility, a trait that shaped their approach to challenges and opportunities.

3
Crisis management

Franklin displayed notable crisis management, a trait that shaped their approach to challenges and opportunities.

Historical Context

The 20th Century created specific selection pressures that rewarded Franklin's profile. In a different era, the same traits might have produced different outcomes.

Key Lessons

  • Franklin's greatest strength (Charismatic leadership and Strategic flexibility) was also their greatest liability when taken to extremes.

  • The The Ruler archetype tends to succeed in environments that reward bold action and long-term vision, but struggles in environments that demand consensus-building.

  • One pattern worth noting: Franklin's output was most productive when external constraints forced focus. Without structure, the same traits that enabled greatness sometimes led to overreach.

Modern Parallel

The modern mind most resembling Franklin's profile is likely Jacinda Ardern. Both share the The Ruler archetype and similar cognitive signatures.

Sources Used for This Estimate

Follow the evidence yourself. Source links document the accomplishments and context used in this analysis; none is presented as a standardized IQ report.

View the Historical Intelligence Index methodology

Compare Franklin

See how Franklin D. Roosevelt's intelligence and psychology stacks up against other historical minds.

Historical ProfilesFranklin D. Roosevelt

Explore More Historical Profiles

Discover how intelligence, personality, and circumstance shaped history's most influential minds.

Think Like Franklin?

Check if your IQ and Archetype match this historical figure's profile.

Same Archetype: The Ruler

Explore psychological profiles of contemporary figures analyzed with similar methods.

Browse All Profiles

Signs of High IQ

Traits commonly observed in individuals with Franklin D. Roosevelt's cognitive profile:

Franklin D. Roosevelt: People Also Ask

What was Franklin D. Roosevelt's IQ?+

No verified standardized score is available for Franklin D. Roosevelt. LifeScore uses 145+ as a retrospective comparison estimate based on documented accomplishments and contemporary accounts, but the exact number cannot be confirmed.

Was Franklin D. Roosevelt a genius?+

Franklin's record supports exceptional achievement, but “genius” is not established by an unverified IQ number. Their The Ruler archetype, combined with Charismatic leadership and Strategic flexibility, is a more useful interpretation of their output.

What personality type was Franklin D. Roosevelt?+

Franklin fits the The Ruler archetype. Key traits include Charismatic leadership, Strategic flexibility, and Crisis management. This psychological profile explains both their strengths and documented failure modes.

Who is the modern equivalent of Franklin D. Roosevelt?+

The closest modern parallel to Franklin D. Roosevelt is Jacinda Ardern. This comparison is based on operating style, The Ruler archetype, and similar trait configuration—not accomplishment level.

What can we learn from Franklin D. Roosevelt?+

Franklin's profile teaches that extreme strengths create extreme tradeoffs. Their Charismatic leadership and Strategic flexibility enabled success but also created recurring friction patterns.

References & Sources

  1. Cox, C. M. (1926). The Early Mental Traits of Three Hundred Geniuses. Stanford University Press.

  2. Simonton, D. K. (2009). Genius 101. Springer Publishing Company.

  3. Cattell, R. B. (1971). Abilities: Their Structure, Growth, and Action. Houghton Mifflin.

Take the Full IQ Test

Get your IQ score, percentile ranking, and cognitive profile with our scientifically validated assessment.

Start on the web, then continue in the app if you want to save and revisit results.