Your IQ —
what percentile?
Free · about 10 min · 20 questions. Abstract-figure pattern reasoning reveals your estimated IQ, deviation score, and national rank — culture-fair and language-independent.
Which figure fits the blank?
Four cognitive abilities measured
Non-verbal measurement based on Raven's matrices (Carpenter et al. 1990)
Three simple steps
Take the test
20 questions, no time limit. Spot the rule in each abstract figure.
Server scoring
Answers live only on the server—tamper-proof, accurate scoring.
See your result
Estimated IQ, deviation, percentile, national rank, and per-area scores.
The science behind it
This test is designed on intelligence research—why abstract figures can measure IQ.
Strongly reflects the g factor
Raven's matrix reasoning is considered one of the tasks that best reflects the general intelligence g (Spearman 1904) common to many cognitive challenges, and it is known to have a high g loading.
Independent of language and culture
Because it uses only abstract figures, it is largely unaffected by language ability, educational background, or cultural knowledge, allowing fluid reasoning (Gf) to be measured in a pure form (CHC theory; McGrew 2009).
Rules are theoretically defined
Items are automatically generated based on the rules Carpenter et al. (1990) identified in the RPM (rotation, quantitative progression, addition and subtraction of figures, and distribution of three values). Each answer is uniquely determined.
Scored with item response theory (IRT)
Rather than counting correct answers, ability θ is estimated with an IRT model that adds a guessing floor c=1/6 for the 6-choice items (so lucky guesses are not mistaken for ability), so correctly answering harder items is weighted more heavily. The estimate is calibrated to a population of θ~N(0,1) and converted to IQ=100+15θ (deviation IQ, SD 15).
References
- Spearman, C. (1904). “General Intelligence,” Objectively Determined and Measured (the discovery of general intelligence g) The American Journal of Psychology, 15(2), 201–293.
- Raven, J. C. (1938). Raven's Progressive Matrices (the standard measure of nonverbal, fluid intelligence) London: H. K. Lewis.
- Carpenter, P. A., Just, M. A., & Shell, P. (1990). What one intelligence test measures: A theoretical account of the processing in the Raven Progressive Matrices Test (decomposing RPM into five rule types) Psychological Review, 97(3), 404–431.
- Rasch, G. (1960). Probabilistic Models for Some Intelligence and Attainment Tests (IRT / the Rasch model) Danish Institute for Educational Research.
- McGrew, K. S. (2009). CHC theory and the human cognitive abilities project (CHC theory) Intelligence, 37(1), 1–10.
Look up IQ rarity
See what percentile and 1-in-N each IQ corresponds to.
See all scores in the IQ chartIQ distribution data
Share and population ratio of each IQ band on a normal curve.
How to solve
Tips and worked examples for all four areas.
Articles
Reads on IQ averages, rarity, the g factor, and more.
IQ classification
Mean IQ is 100, SD 15. Scores fall into the following ranges.
How to raise your IQ
Do brain-stimulating activities
Puzzles, problem-solving, and learning new skills strengthen neural connections.
Get quality sleep and rest
Sleep is essential for attention, memory, and decision-making. Adequate rest optimizes cognitive performance.
Eat a balanced diet
Antioxidants, omega-3s, vitamins, and minerals support brain health and cognitive function.
Exercise regularly
Exercise boosts blood flow to the brain, helps generate new brain cells, and improves cognition.
Keep learning
Reading, courses, and new experiences stimulate the brain and build adaptability. Consistent learning is key.
Manage stress and mental health
Chronic stress harms cognition. Meditation and mindfulness help keep your brain healthy.
What users say
I could really focus with just figures. The result analysis was far more detailed than I expected.
Loved getting a certificate! It got a great reaction when I shared it on social media.
The way the difficulty ramps up feels real. The per-area strengths and weaknesses were helpful.
It feels fair since you can solve it regardless of language. I want to try again.
Seeing a national rank is motivating. I'm competing with my friends.
Quick—done in 10 minutes. The results page is incredibly well made.
FAQ
- Is this IQ test free?
- Yes, taking the test is free. Full results can be unlocked with a small payment.
- How long is it and how many questions?
- 20 questions. No time limit, but your speed factors into the score. All are abstract-figure pattern items (6 choices), independent of language or knowledge.
- Is the displayed IQ accurate?
- It's an estimate based on a normal model (mean 100, SD 15). It's a fun guide, not an official psychological assessment.
- Do I need to sign up?
- No. You can take it anonymously; sign in with Google to save results across devices.
Measure your intelligence now—free
~10 minutes · no signup