Fictional Profile

Hermione Granger

Source: Harry Potter

Last reviewed: February 2026
Fictional Character Psychology

What is Hermione Granger?

Estimated IQ of 145. ISTJ / INTJ (debated) personality type with the The Scholar archetype. High conscientiousness and strong verbal intelligence. Hermione’s edge is preparation: she turns uncertainty into a study plan.

Last reviewed: February 2026

Hermione Granger's IQ is estimated at 145 (Genius), based on their demonstrated discipline and memory and learning in Harry Potter.

Estimated IQ
145
Archetype
The Scholar
Type
ISTJ / INTJ (debated)
Clinical Note

Perfectionism tendencies; high achievement orientation.

Cognitive Profile

An IQ around 145 predicts certain capabilities: rapid learning, pattern recognition, and working memory that can hold complex models. Hermione demonstrates all of these consistently.

Archetype: The Scholar

Understanding Hermione requires understanding the The Scholar archetype. This pattern has specific failure modes that the source material often depicts accurately.

Personality Type: ISTJ / INTJ (debated)

ISTJ / INTJ (debated) is the assigned type. In practice, this means: internal processing and solitude-seeking. The NT core indicates systems-thinking and logical optimization over emotional attunement.

Psychological Breakdown

High conscientiousness and strong verbal intelligence. Hermione’s edge is preparation: she turns uncertainty into a study plan.

Superpowers

1
Discipline

Discipline is a defining capability that shapes how Hermione approaches challenges.

2
Memory and learning

Memory and learning is a defining capability that shapes how Hermione approaches challenges.

3
Moral courage

Moral courage is a defining capability that shapes how Hermione approaches challenges.

Fatal Flaws

1
Rule rigidity

Rule rigidity is a recurring pattern that creates conflict and limits Hermione's effectiveness in certain domains.

2
Over-responsibility

Over-responsibility is a recurring pattern that creates conflict and limits Hermione's effectiveness in certain domains.

3
Stress under chaos

Stress under chaos is a recurring pattern that creates conflict and limits Hermione's effectiveness in certain domains.

Key Psychological Moments

Hermione's arc typically includes moments of insight where the weakness patterns are recognized—and sometimes addressed. These growth moments distinguish well-written characters from flat ones.

Real-World Parallels

Real people rarely match Hermione's extremes—but many share one or two key traits. Understanding which ones you share can be illuminating.

Are You Like Hermione Granger?

Do you share the ISTJ / INTJ (debated) profile? Take the test to see your match percentage.

Quick Stats

  • IQ145
  • TypeISTJ / INTJ (debated)
  • ArchetypeThe Scholar
  • SourceHarry Potter

Methodology Note

Character typing is interpretive. IQ estimates are based on depicted problem-solving relative to fictional baselines. Personality types are inferred from consistent behavioral patterns in source material.

References & Sources

  1. Simonton, D. K. (2009). Genius 101. New York: Springer.

  2. Kaufman, S. B., & Gregoire, C. (2015). Wired to Create: Unraveling the Mysteries of the Creative Mind. New York: Perigee.

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Hermione Granger: Frequently Asked Questions

What is Hermione Granger's IQ?+

Hermione Granger's estimated IQ is approximately 145. This is an interpretive estimate based on depicted problem-solving ability, learning speed, and cognitive complexity in the source material.

What personality type is Hermione Granger?+

Hermione Granger is typed as ISTJ / INTJ (debated) based on behavioral patterns in Harry Potter. Key indicators include preference for solitary processing and logical decision-making.

What is Hermione Granger's archetype?+

Hermione Granger embodies the The Scholar archetype. This pattern is characterized by specific cognitive and behavioral tendencies.

What are Hermione Granger's weaknesses?+

Hermione Granger's documented weaknesses include Rule rigidity, Over-responsibility, and Stress under chaos. These aren't arbitrary—they're the shadow sides of the character's strengths.

Is Hermione Granger realistic?+

Hermione Granger represents an exaggerated but recognizable psychological profile. Real people rarely match the extremes, but the underlying patterns (ISTJ / INTJ (debated), The Scholar tendencies) are psychologically valid.

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