What is Lex Luthor’s IQ?
Screen Rant alone has “settled” who is DC’s smartest mind three times since 2022, naming three different winners. The 225 that circulates for Lex Luthor traces to none of those stories, or to any comic at all.
No comic, test or issue we could find puts a number on the IQ of Lex Luthor, Superman’s archenemy: the 225 that circulates has no cited source, and DC’s own comics writers cannot agree whether Luthor, Batman, Brainiac or Mister Terrific holds the title of smartest mind in the DC Universe. This site’s estimated IQ range for Luthor as written is 180–200.
Lex Luthor’s estimated IQ
- In the post-Crisis continuity from John Byrne’s The Man of Steel (1986), Luthor is an MIT graduate who builds LexCorp into a firm that comes to dominate much of Metropolis; Superman: Birthright (2004) ties the same fortune to his scientific research into alien life instead.
- He is written as a hands-on inventor, not just a financier: credited across the comics with power armor and warsuits, kryptonite weaponry, cloning technology and reverse-engineered Brainiac technology, and the weekly series 52 (2006–2007) has him develop the Everyman Project, an artificial-metagene process whose remote shutoff kills the speedster Trajectory.
- CBR’s “9 Questions About Lex Luthor, Answered” (March 27, 2019) calls him “the smartest person in the entire DC universe” and states plainly that “his only power is his mind,” naming Brainiac, Professor Ivo and Bruce Wayne as the only real rivals.
- That “smartest” status is repeatedly restaged rather than fixed: DCeased #5 (Tom Taylor and Trevor Hairsine, cover-dated December 2019) has Luthor claim the title only once Batman is dead, and three separate Screen Rant pieces published in 2022, 2024 and 2025 each announce DC has settled the question, naming a different winner each time.
- He was elected President of the United States in the “Lex 2000” storyline, holding office from 2001 until his 2003 removal, and IGN ranked him fourth on its “100 Greatest Comic Book Villains of All Time” list (2009).
This rates a role written by dozens of authors across 85 years, not a fixed test result: Luthor is as brilliant as a given story needs him to be, and DC’s own writers cannot agree whether he, Batman, Brainiac or Mister Terrific holds the “smartest” title in any given year. Reports of scores much above 160 are already considered dubious for real people, so a fictional range this high describes authorial intent, not a measurement.
- First appearance
- Action Comics #23, cover-dated April 1940
- Created by
- Jerry Siegel and Joe Shuster
- Full name
- Alexander Joseph “Lex” Luthor
- Role
- Businessman, scientist and criminal mastermind; founder and CEO of LexCorp; Superman’s archenemy
- Education
- MIT, in the post-Crisis continuity established by John Byrne’s The Man of Steel (1986)
- Notable office
- President of the United States, 2001–2003 (removed after his conspiracy with Darkseid was exposed)
- Current screen portrayal
- Nicholas Hoult, in Superman (2025), directed by James Gunn
- Canonical IQ
- None published; 225 is the most-cited circulating figure, with no comic, test or issue behind it
What an IQ of 180–200 actually means
Set the claim aside for a moment. If someone genuinely scored in this range, here is what that would represent.
Average is 100 by construction, and about two-thirds of people fall between 85 and 115. Take the test to place your own score on this scale.
| Score range | Classification | Share of people | What it indicates |
|---|---|---|---|
| 85 – 114 | Average | ~68% | The range most people fall into. |
| 115 – 129 | Above average | ~13.6% | Roughly one person in seven. |
| 130 – 144 | Gifted | ~2% | The threshold most high-IQ societies use. |
| Above 144 | Highly gifted | ~0.1% | Figures above this range are extrapolated from the curve rather than measured. |
Percentages are approximate and describe a normal distribution. The same number means different things on tests with different standard deviations.
Thirty questions gives you a measured position on this exact scale — your score, your percentile and the ability breakdown behind it.
Find out in 30 minutes →Who Lex Luthor is
Lex Luthor is a DC Comics character created by Jerry Siegel and Joe Shuster, first appearing in Action Comics #23, cover-dated April 1940, as Superman’s recurring antagonist; his full name is given as Alexander Joseph “Lex” Luthor. Wikipedia’s lead describes him as “a genius with an extraordinary aptitude for business and manipulation,” and few adversaries in American comics have had as long a screen life. Lyle Talbot played him in Atom Man vs. Superman, a 15-chapter Columbia serial released July 20, 1950; Gene Hackman across the Superman film series from 1978 to 1987; John Shea in Lois & Clark: The New Adventures of Superman (1993–1997); Michael Rosenbaum as a younger, not-yet-villainous Lex in Smallville (2001–2011); Kevin Spacey in Superman Returns (2006); Jon Cryer in the Arrowverse’s Supergirl (2018–2021); Jesse Eisenberg in the DC Extended Universe (2016–2017); and Nicholas Hoult in Superman (2025), directed by James Gunn and released July 11, 2025, with a confirmed return in the sequel Man of Tomorrow (2027). Clancy Brown voiced the role across Superman: The Animated Series, Justice League and Justice League Unlimited from 1996 to 2006.
The most-cited version of his origin is the post-Crisis reboot from John Byrne’s The Man of Steel (1986): an MIT graduate who builds LexCorp into a firm that comes to dominate much of Metropolis, a self-made success story until Superman’s arrival makes him look ordinary by comparison. Superman: Birthright (2004) tells a different version, tying the same fortune to Luthor’s scientific research into alien life. CBR’s March 2019 profile sums up the throughline across versions: no superpowers, only, in the piece’s own words, “his only power is his mind,” paired with a self-defeating pride and an assumption that any scheme will succeed simply because he is a genius — an ordinary-human failure mode this site examines more generally in why smart people make bad decisions. The same profile notes Luthor was, for years, told outright that Superman is Clark Kent and refused to believe a mild-mannered newspaperman could be his rival.
The documented feats behind any estimate are specific. The weekly series 52 (2006–2007) has Luthor develop the Everyman Project, offering ordinary citizens artificial superpowers through a metagene process he can also shut off remotely — a power that, in the story, kills the speedster Trajectory. He is credited elsewhere with power armor and warsuits, kryptonite weaponry, cloning technology and reverse-engineered Brainiac technology, and in Justice League vol. 2 #30 (2014) he joins the New 52 Justice League in his own warsuit. In the “Lex 2000” storyline he is elected President of the United States, taking office in 2001 and fleeing in 2003 once his advance knowledge of an alien invasion and his conspiracy with Darkseid come out. IGN ranked him fourth on its “100 Greatest Comic Book Villains of All Time” list (2009). Against Superman specifically, CBR counts only one unambiguous win: Mark Millar and Dave Johnson’s Superman: Red Son, a three-issue Elseworlds miniseries from 2003 imagining a Soviet-raised Superman.
Placed against the fictional peers on this site, a range of 180–200 puts Luthor just under Reed Richards (190–210), Marvel’s own “smartest man alive” claim, which rests on a similarly unsourced high figure (267) and a similarly contested title. It sits close to Professor Moriarty (175–195), the other archenemy on this roster defined by outthinking a hero rather than outfighting one, and just under this site’s discussion of what counts as a genius IQ level in the first place. The margin below Reed Richards reflects how contested Luthor’s own “smartest” claim is even inside DC’s comics — Batman, Brainiac and Professor Ivo are each named as rivals in the sources above — not any documented shortfall in his feats.
By Elora Mercer, Celebrity Research WriterFigures checked by Leon Falkner, Data & Research AnalystReviewed by Aarav Vardhan, Editor-in-Chief · Last reviewed August 2026
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Lex Luthor: the documented record
The estimate above rests on this record. Every entry here is a matter of public fact, which is more than can be said for the number itself.
- 1940Action Comics #23, cover-dated April 1940, introduces Lex Luthor; Jerry Siegel writes and Joe Shuster draws.
- 1986John Byrne’s The Man of Steel reboots Luthor as an MIT-educated, self-made Metropolis tycoon, the post-Crisis version most later stories build on.
- 2000–2003The “Lex 2000” storyline has Luthor elected President of the United States; he takes office in 2001 and flees in 2003 once his conspiracy with Darkseid is exposed.
- 2003Mark Millar and Dave Johnson’s Superman: Red Son, a three-issue Elseworlds miniseries, tells one of the only stories in which Luthor unambiguously beats Superman.
- 2006–2007The weekly series 52 introduces the Everyman Project, Luthor’s artificial-superpower scheme, whose remote shutoff kills the speedster Trajectory.
- 2009IGN ranks Luthor fourth on its “100 Greatest Comic Book Villains of All Time” list.
- 2014Justice League vol. 2 #30 has Luthor join the New 52 Justice League in his own warsuit.
- 2019DCeased #5 (Tom Taylor and Trevor Hairsine, cover-dated December) has Luthor call himself “the most intelligent person on the planet” on learning Batman has died.
- 2024Action Comics #1064 (April; Joshua Williamson, Rafa Sandoval, Alejandro Sánchez, Dave Sharpe) opens “House of Brainiac,” in which Brainiac’s hunt for “the smartest person on the planet” leads to Luthor.
- 2025Nicholas Hoult plays Luthor in Superman, directed by James Gunn and released July 11; a sequel, Man of Tomorrow, is set for 2027.
Where the 225 figure came from
Following a claim back to its first appearance is the part almost nobody does — and it is what most people are actually asking.
Lex Luthor’s IQ is not a number that any comic we could find states for the character. The figure that circulates is 225, and CBR’s “9 Questions About Lex Luthor, Answered” (March 27, 2019) states it as fact — “Lex Luthor’s IQ is estimated to be 225, which is very impressive” — while citing no comic, test or issue behind it, and pairing it with Batman at 192, Einstein at “between 160 and 180” and Tony Stark at 270, also uncited. The same 225 titles a page on check-iq.org (“225 IQ: The Brilliant Mind of Lex Luthor,” per its own headline), though that page would not load for us directly across repeated attempts, so we cannot confirm what, if anything, it cites. At least one online summary we saw blends the two numbers into a single “192 to 225” range for Luthor himself, which looks like Batman’s comparison figure folded into Luthor’s own — the kind of drift this site tracks in general under where celebrity IQ numbers come from.
What the comics themselves show is a title that keeps changing hands. In DCeased #5 (Tom Taylor and Trevor Hairsine, cover-dated December 2019), Luthor is told that Batman has just died in the series’ zombie-outbreak storyline; his reported reply, as Screen Rant’s Tristan Benns quotes it on November 24, 2022, is “Right. Then I am the most intelligent person on the planet…” Benns reads the line as DC ranking Batman first, Luthor second and Mister Terrific — “largely known to be the third-smartest man on the planet” — a distant third. That is one writer’s inference from one line in one issue, not a test result.
Two later stories reopen the same question and answer it differently. Screen Rant’s Justin Epps (April 10, 2024) ties DC’s “smartest person” title instead to Action Comics #1064 (Joshua Williamson, Rafa Sandoval, Alejandro Sánchez and Dave Sharpe, April 2024), the opening chapter of “House of Brainiac,” in which Brainiac orders his forces to bring him “the smartest person on the planet” — a search whose answer, per Epps’s headline, is Luthor, not Batman. Screen Rant’s TJ Mills (February 2, 2025) reaches a similar conclusion by a different route: in Superman: Lex Luthor Special #1, Mister Terrific chooses to consult Luthor rather than Batman on a matter requiring “intellectual dark paths,” which Mills reads as Mister Terrific’s own vote for Luthor, while the same piece concedes Batman’s detective record and offers no IQ number for either man. Three pieces of comics journalism, three years apart, three different winners, and none of them a number.
The “lex luthor iq vs batman” question has no sourced answer for the same reason. CBR calls Luthor flatly “the smartest person in the entire DC universe” while naming Batman as one of only three real rivals, alongside Brainiac and Professor Ivo, and the same page’s own comparison figures put Luthor at 225 against Batman’s 192 — a 33-point gap nobody attaches to a test or an issue. The circulating 225 sits 25 points above the top of this site’s 180–200 range for Luthor and, on the usual scale of mean 100 and standard deviation 15, is more than eight standard deviations above average, a point no norm sample reaches; our note on the IQ ceiling effect covers why no test can separate scores that high. As on most profiles here, the documented record supports a lower figure than the one that circulates.
How we read a number →Lex Luthor: created by Jerry Siegel and Joe Shuster, first appeared Action Comics #23 (cover-dated April 1940); post-Crisis MIT education and LexCorp founding from John Byrne’s The Man of Steel (1986); Superman: Birthright (2004) ties the same fortune to alien-life research; presidency from the “Lex 2000” storyline, in office 2001–2003, removed after his Darkseid conspiracy was exposed; Everyman Project in 52 (2006–2007), including the death of the speedster Trajectory; Justice League vol. 2 #30 (2014) shows him joining the New 52 Justice League in his own warsuit; IGN’s 2009 ranking of him fourth on “100 Greatest Comic Book Villains of All Time”; lead description as “a genius with an extraordinary aptitude for business and manipulation”; no IQ figure given. DCeased: confirms issue #5 (Tom Taylor, Trevor Hairsine) is part of the 2019 maxiseries. Superman: Red Son: confirms the three-issue Elseworlds miniseries by Mark Millar and Dave Johnson, published 2003.
Confirms live-action and animated portrayals with years: Michael Rosenbaum in Smallville (2001–2011); John Shea in Lois & Clark: The New Adventures of Superman (1993–1997); Jon Cryer in the Arrowverse’s Supergirl (2018–2021); Clancy Brown voicing Superman: The Animated Series, Justice League and Justice League Unlimited (1996–2006). No IQ figure mentioned for any portrayal.
States “Lex Luthor’s IQ is estimated to be 225, which is very impressive,” with no source cited, alongside Batman at 192, Einstein at “between 160 and 180” and Tony Stark at 270, also uncited. Calls Luthor “the smartest person in the entire DC universe” and names Brainiac, Professor Ivo and Bruce Wayne as the only real rivals; states “his only power is his mind”; names pride and overconfidence as his defining weakness; and credits Mark Millar’s Superman: Red Son as the one story where he unambiguously beats Superman.
Reports Luthor’s line in DCeased #5 (Tom Taylor, Trevor Hairsine) on learning of Batman’s death — “Right. Then I am the most intelligent person on the planet…” — and reads it as ranking Batman first, Luthor second and Mister Terrific, “largely known to be the third-smartest man on the planet,” third. No IQ number given.
Ties DC’s “smartest person” title to Action Comics #1064 (Joshua Williamson, Rafa Sandoval, Alejandro Sánchez, Dave Sharpe, April 2024), the opening of “House of Brainiac,” in which Brainiac sends his forces to fetch “the smartest person on the planet” — read here as Luthor, not Batman. No IQ number given.
Op-ed argument that Luthor outranks Batman because, in Superman: Lex Luthor Special #1, Mister Terrific chooses to consult Luthor rather than Batman on a matter needing “intellectual dark paths.” Cites no IQ number and concedes Batman’s own case.
Label “Lex Luthor,” description “fictional character in DC Comics”; instance of comics character, fictional human, animated character, television character and film character; DC character ID “lex-luthor” and Comic Vine ID 4005-41952 confirm this is the character rather than a film-specific or unrelated entity.
Checked: Wikipedia’s “Lex Luthor” and “Lex Luthor in other media” articles, CBR’s profile and the three Screen Rant pieces above. None traces an IQ figure for the character to a comic, test or named source; 225 is stated as fact wherever it appears. check-iq.org titles a page “225 IQ: The Brilliant Mind of Lex Luthor,” repeating the same figure per search-engine indexing, but the page would not load for us directly across repeated attempts, so we could not confirm what, if anything, it cites.
The sources behind our estimate
The figures that circulate for Lex Luthor, what we were able to confirm, and where the two diverge.
An IQ of 225 is printed for Lex Luthor by CBR’s “9 Questions About Lex Luthor, Answered” (March 27, 2019) — “Lex Luthor’s IQ is estimated to be 225, which is very impressive” — alongside Batman at 192, Einstein at “between 160 and 180” and Tony Stark at 270, none of them cited to a comic or test. The same 225 titles a page on check-iq.org (“225 IQ: The Brilliant Mind of Lex Luthor”), and at least one online summary blends the numbers into a “192 to 225” range for Luthor himself. Searches also add “lex luthor iq vs batman” and “lex luthor iq level.”
No page we could read traces an IQ score for Lex Luthor to a DC comic. Wikipedia’s articles on Lex Luthor and on Lex Luthor in other media give no figure, and CBR’s own profile states 225 with nothing behind it. What the comics themselves show instead is a title that keeps changing hands: in DCeased #5 (Tom Taylor and Trevor Hairsine, cover-dated December 2019), Luthor’s reported line on hearing that Batman has died is “Right. Then I am the most intelligent person on the planet…”, which Screen Rant’s Tristan Benns (November 24, 2022) reads as ranking Batman first, Luthor second and Mister Terrific — “largely known to be the third-smartest man on the planet” — third. Screen Rant’s Justin Epps (April 10, 2024) ties the same title to Action Comics #1064, where Brainiac’s forces are sent to fetch “the smartest person on the planet,” read there as Luthor rather than Batman. Screen Rant’s TJ Mills (February 2, 2025) argues Luthor outranks Batman for a third reason: in Superman: Lex Luthor Special #1, Mister Terrific consults Luthor rather than Batman on a matter requiring “intellectual dark paths.” Three writers, three dates, three different verdicts, and no IQ number in any of them. check-iq.org would not load for us directly, so its page is named but not quoted here.
The circulating 225 sits 25 points above the top of this range and, on the usual scale of mean 100 and standard deviation 15, is more than eight standard deviations above average — a point no norm sample reaches and no test has items to measure. As on most profiles here, the documented record supports a lower figure than the one that circulates, and the size of the gap tracks how contested the “smartest” claim still is inside DC’s own comics.
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Lex Luthor — frequently asked
What is Lex Luthor’s IQ?
Lex Luthor has no IQ that any comic or test we could find documents; this site’s estimate for the character as written is 180–200. The 225 that circulates online, including on CBR and check-iq.org, has no comic, issue or test behind it in anything we could read.
Where does the Lex Luthor IQ of 225 come from?
No comic we could find states it. CBR’s “9 Questions About Lex Luthor, Answered” (2019) and a check-iq.org page titled “225 IQ: The Brilliant Mind of Lex Luthor” both print 225 without citing a source, alongside the same uncited comparison figures for Batman (192), Einstein and Tony Stark.
Lex Luthor IQ vs Batman: who is smarter?
DC’s own writers disagree. Screen Rant’s 2022 read of DCeased #5 ranks Batman first and Luthor second; its 2024 read of Action Comics #1064 has Brainiac’s hunt for “the smartest person on the planet” land on Luthor instead; and a 2025 op-ed argues Luthor again, from one scene in Superman: Lex Luthor Special #1. No sourced IQ settles it either way.
What IQ level is Lex Luthor usually written at?
Consistently at or near the top of the DC Universe: CBR calls him “the smartest person in the entire DC universe,” naming Batman, Brainiac and Professor Ivo as the only real rivals. This site’s character-analysis estimate puts that portrayal at 180–200, well below the unsourced 225 that circulates.
Is Lex Luthor a genius?
As written, yes: Wikipedia describes him as “a genius with an extraordinary aptitude for business and manipulation,” credited across the comics with power armor, cloning technology and the Everyman Project’s artificial superpowers. CBR sums it up as “his only power is his mind” — no superpowers, only intellect and ambition.
Did Lex Luthor ever take an IQ test?
Not in any comic, film or show we could find. He is a fictional character, so “taking a test” only happens if a writer puts it on the page, and no source we checked shows one. Every number attached to him, including 225, is a claim, not a result.
How does Lex Luthor’s estimated IQ compare with Reed Richards?
This site puts Luthor at 180–200 and Reed Richards, Marvel’s own “smartest man alive” claim, at 190–210 — both character-analysis estimates, and both well under the unsourced figures that circulate for them (225 and 267). The gap mainly reflects how openly contested Luthor’s “smartest” title is within DC’s own comics.
How does my IQ compare with Lex Luthor?
You can find out in about fifteen minutes. The IQ Metrics assessment is 30 questions, scored on the same 100-mean scale used throughout this page, so your result and the estimate above are at least expressed in the same units — one measured, one inferred. Once you have a number, the leaderboard shows where it would sit, and how we score and norm it explains the benchmarking.
Where does this estimate come from?
From the documented record rather than a test — the method is named above and set out in full under how we read a number. Compare it against the other fictional profiles, starting with Sherlock Holmes.
- Take the 30-question IQ test — get a measured score and percentile of your own
- Average IQ by country — how the scale behaves across populations
- How IQ Metrics scores its assessment — the method behind our own number
- More on how IQ testing works — reliability, error and what a score can and cannot say
- More fictional profiles — same field, same method
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