Ruth Bader Ginsburg's IQ: 135–150
Ruth Bader Ginsburg
Estimated IQ
135–150
Known For
Supreme Court Justice, women's rights pioneer
About Ruth Bader Ginsburg
Ruth Bader Ginsburg's IQ is estimated at 135-150 based on her extraordinary legal career. She graduated first in her class at Columbia Law School, served on the US Court of Appeals, and spent 27 years on the Supreme Court. Her legal reasoning in landmark gender equality cases demonstrated exceptional analytical precision and the ability to construct arguments that changed constitutional interpretation.
What an IQ of 135–150 Means
Graduating first in your class at Columbia Law School — one of the top law schools in the world — places Ginsburg among the most academically gifted legal minds of her generation. Her constitutional arguments required the highest levels of abstract legal reasoning, and her ability to build incremental legal strategies over decades demonstrated extraordinary long-term strategic thinking.
How Ruth Bader Ginsburg Compares
To understand where this falls on the IQ scale, see our complete IQ score ranges guide, or learn what IQ actually measures.
Famous IQ Comparison
| Person | Estimated IQ | Known For |
|---|---|---|
| Ruth Bader Ginsburg | 135–150 | Supreme Court Justice, women's rights pioneer |
| Dwayne 'The Rock' Johnson | 105–118 | Actor, wrestler, entrepreneur, highest-paid actor |
| Lionel Richie | 115–125 | Grammy-winning singer, songwriter, American Idol judge |
| Malala Yousafzai | 120–135 | Nobel Peace Prize laureate, education activist, Oxford graduate |
| Billie Eilish | 110–120 | Grammy-winning singer-songwriter, youngest album of year winner |
| Jeff Goldblum | 125–135 | Actor (Jurassic Park), jazz musician, intellectual personality |
| Kylie Jenner | 105–115 | Kylie Cosmetics founder, media personality, billionaire |
See the complete famous IQ list or check what an IQ of 143 means.
Careers That Match an IQ of 143
- Anesthesiologist — typical IQ range: 125–140
- Neurosurgeon — typical IQ range: 128–140
- Patent Attorney — typical IQ range: 125–138
Explore the full IQ by career chart.
Where This Estimate Comes From
- Documented academic record: graduated first in her class at Cornell and tied for first at Columbia Law School after transferring from Harvard Law
- Estimates extrapolate from this elite academic and judicial record
- No publicly verified test result
Estimate disclaimer: Ruth Bader Ginsburg's IQ figure is a speculative estimate compiled from public sources, not a verified test result. See how we compile these estimates.
Frequently Asked Questions
What was RBG's IQ?
Ginsburg's IQ is estimated at 135-150. Graduating first at Columbia Law and serving 27 years on the Supreme Court reflect exceptional legal and analytical intelligence.
Was RBG one of the smartest justices?
Her academic record (first in class at Columbia Law) and legal reasoning place her among the most intellectually gifted Supreme Court justices. Her strategic approach to building gender equality precedent was particularly brilliant.
How did RBG succeed despite discrimination?
Despite facing severe gender discrimination in law (she was rejected from law firms despite graduating first at Columbia), her extraordinary intellectual ability eventually overcame barriers. Her story demonstrates that exceptional intelligence can partially — though not easily — overcome systemic discrimination.
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MyIQScores Editorial Team
Researchers in cognitive psychology, psychometrics & educational science
Last updated
May 10, 2026
All content on MyIQScores is reviewed for scientific accuracy against peer-reviewed research in cognitive psychology and psychometrics. Our editorial team cross-references each article with published literature before publication and updates pages whenever new research warrants a revision.