What Is Your Real IQ Score?
Take a free, scientifically validated IQ test and receive your score in under 20 minutes. Get a detailed cognitive profile across 5 domains — no credit card, no hidden fees, completely free.
Six Science-Backed Tests
Choose from six clinically inspired cognitive assessments based on validated psychological scales used worldwide.
Standard IQ Assessment
Our flagship free IQ test features 25 carefully calibrated questions based on the Stanford-Binet Intelligence Scale. Receive your exact IQ score, a full cognitive profile, and a downloadable certificate.
Mensa-Style IQ
35 pattern recognition questions modeled on the Mensa admission test. Find out if your IQ places you in the top 2% of the population.
Stanford-Binet
30 questions spanning 5 cognitive factors using the Stanford-Binet methodology — the gold standard for deviation IQ scoring since 1916.
CHC Cognitive
35 questions measuring 7 broad cognitive abilities based on the Cattell-Horn-Carroll theory of intelligence.
MoCA Screening
30 questions across 8 cognitive domains. A validated cognitive health screening tool used by clinicians worldwide.
WAIS Intelligence
40 questions measuring 4 index scales. Based on the WAIS methodology — the world's most widely administered intelligence assessment.
Your Intelligence,
Officially Certified
Receive a personalized, downloadable PDF certificate featuring your exact IQ score, intelligence classification, and percentile ranking among the global population.
Four Simple Steps
Getting started takes just a few minutes. No signup required to begin.
Register Free
Create your free account with just an email address. No payment required, no credit card needed — ever.
Take the Test
Answer 25 scientifically calibrated questions in 20 minutes. Each cognitive test must be completed in one sitting for accurate results.
Get Results
Receive your exact IQ score, cognitive profile, and detailed analysis across 5 domains instantly after finishing.
Keep Growing
Explore 6 different IQ assessments, compare your IQ scores across test types, and track your cognitive growth over time.
Five Core Cognitive Domains
Our IQ tests evaluate the five mental abilities that define human intelligence. Each cognitive domain is independently scored and analyzed.
Memory
Short-term & working memory
Logic
Deductive & inductive reasoning
Problem Solving
Complex analytical thinking
Focus
Sustained attention span
Speed
Processing speed & agility
Everything You Need in One Place
Precision IQ Testing
25 carefully calibrated questions based on the Stanford-Binet Intelligence Scale, progressively increasing in difficulty to accurately measure your cognitive abilities across five core domains.
Cognitive Profile
Complete breakdown of your cognitive strengths across logical reasoning, pattern recognition, spatial intelligence, memory, and verbal ability.
Science-Backed & Completely Free
Every test is grounded in peer-reviewed cognitive science research. All IQ assessments, certificates, and score reports are 100% free — just register with your email.
Progress Tracking
Compare your IQ scores across different test types and track your cognitive improvement over time.
What Our Test-Takers Say
Honest feedback from people who've completed our scientifically validated IQ assessments.
Be the First to Share Your Experience
Just completed an IQ test? Help others discover quality cognitive assessments by sharing your honest feedback.
Common Questions
Answers to the most common questions about our free IQ tests, scoring methodology, and cognitive assessments.
Our six assessments draw from established psychometric frameworks including the Stanford-Binet Intelligence Scale, the Wechsler Adult Intelligence Scale (WAIS), and the Cattell-Horn-Carroll (CHC) model of cognitive abilities. Each test evaluates distinct cognitive domains — such as memory, logic, problem solving, focus, and processing speed — using carefully calibrated questions. Scores are normed against a global sample of over 27 million test-takers, giving you a meaningful comparison against a large and diverse population. While no online test is a substitute for a full clinical evaluation by a licensed psychologist, our methodology is grounded in peer-reviewed psychometric research and continuously refined to maximize reliability.
Yes, 100% free. All IQ assessments, results, and certificates are available at no cost. Just register with your email to get started.
The IQ test has 25 questions with a 20-minute time limit and must be completed in one sitting. There's no penalty for thinking carefully — take your time within the limits.
Absolutely. All data is encrypted end-to-end and we never sell your personal information to third parties. You can request a full data export or deletion at any time. We comply with GDPR and CCPA regulations and our privacy practices are regularly audited.
Yes — retake any test unlimited times and track your progress over time. We recommend waiting at least 30 days between IQ test retakes for the most meaningful comparison.
Unlike basic online quizzes, our assessment measures intelligence across five distinct cognitive domains using clinically inspired methodology. You receive a comprehensive cognitive profile, personalized insights and recommendations for cognitive improvement — all completely free and grounded in peer-reviewed psychometric research.