Genius IQ — What Score Counts as Genius? (140+ Explained)
What IQ score is considered genius? Where 140, 145 and 160 sit on the scale, how rare each is, and the famous high-IQ figures often cited.
4 min read
IQ Insights
In-depth, research-based guides on IQ scores, intelligence testing, demographics and how to take a test — from the IQCognify editorial team.
Latest articles
Average IQ by Age — How IQ Changes Across the Lifespan
How average IQ scores relate to age, why tests are age-normed, when cognitive abilities peak, and what changes (and doesn't) as you get older.
5 min read
How IQ Tests Work — Norming, Scoring & Reliability
How IQ tests are built and scored: standardization samples, the mean-100/SD-15 scale, item difficulty, reliability and validity — in plain English.
4 min read
IQ Percentile Chart & Calculator — Convert IQ to Percentile
Convert any IQ score to a percentile with our interactive calculator. See exactly what share of people you score above on the standard mean-100, SD-15 scale.
3 min read
IQ Tests for Children — What Parents Should Know
How IQ testing works for kids, what gifted thresholds mean, when testing helps, and why online tests are not a substitute for professional assessment.
4 min read
IQ Score Chart & Scale (2026) — Classifications & Percentiles
The full IQ score chart at a glance: look up any score to see its classification band, percentile, rarity, and share of the population, plus the bell curve — the complete reference scale (mean 100, SD 15).
3 min read
Average IQ by Country — Rankings, Data & Caveats
Average IQ estimates by country, how the data is gathered, the serious methodological caveats, and why national IQ comparisons are widely contested.
4 min read
What Does My IQ Score Mean? (2026 Guide)
Just got an IQ score? A plain-English guide to interpreting your own result — what your percentile means, whether the number is 'good', and what it does and doesn't predict about you. (For the at-a-glance reference table, see the IQ score chart.)
6 min read
Are Online IQ Tests Accurate? An Honest Answer
How accurate are free online IQ tests really? What they can and can't tell you, how they compare to clinical tests, and how to read your result honestly.
3 min read