Scientifically validated IQ testing across four cognitive domains. Transparent methodology. Accurate results certified to international standards.
| IQ Score | Classification | Percentile |
|---|---|---|
| 130+ | Very Superior | 98th+ |
| 120–129 | Superior | 91st–97th |
| 110–119 | High Average | 75th–90th |
| 90–109 | Average | 25th–74th |
| 80–89 | Low Average | 9th–24th |
Each test is meticulously calibrated to measure specific aspects of cognitive ability using psychometrically validated items.
All tests include a full certified report delivered to your email after completing your €3.90 assessment.
We believe you deserve to understand exactly how your IQ is calculated. No black boxes — complete transparency from raw score to final IQ.
Each question is weighted by difficulty tier (Easy = 1pt, Medium = 2pt, Hard = 3pt), yielding a weighted raw score that reflects true cognitive effort.
Your weighted score is compared against a standardized normative sample of 100,000+ individuals, converting it to an accurate percentile rank.
Using the Wechsler scale (mean=100, SD=15), your percentile is converted to an IQ score. This is the same scale used by MENSA and professional psychologists worldwide.
You receive individual scores for Numerical, Verbal, Logical, and Spatial reasoning — revealing your cognitive profile beyond a single number.
IQ = 100 + 15 × Φ⁻¹(percentile)
Where Φ⁻¹ is the inverse normal distribution function — the same formula used in certified psychometric assessments.
Note: This test is an educational screening tool based on established psychometric principles. For clinical diagnosis, consult a licensed psychologist.
From question one to certified results — designed for clarity, speed, and precision.
Answer 20–40 carefully designed questions covering numerical, verbal, logical, and spatial domains. No time pressure on most test types.
Unlock your full certified report for a one-time fee of €3.90 via PayPal or Stripe. Your payment is processed securely — we never see your card details.
Your IQ score, percentile ranking, domain breakdown, and detailed analysis are delivered instantly on-screen and to your email.
Read the instructions carefully before you start.
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Enter your email address to receive your certified IQ report after payment.
Your IQ report will be sent here. We never share your email with third parties.
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Report sent! Your results have been emailed to you.
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