About Our Free Online IQ Test
Our free IQ test draws from a database of 1,000 carefully crafted questions spanning 9 cognitive domains. Each time you take the test, you receive a fresh set of 20 questions — ensuring variety and reducing memorization bias.
What Does This IQ Test Measure?
The test covers nine categories that reflect the major dimensions of cognitive ability measured by professional intelligence assessments:
- Logic & Deductive Reasoning — Syllogisms, logical sequences, conditional statements
- Pattern Recognition — Number sequences, visual patterns, series completion
- Verbal Reasoning — Synonyms, antonyms, analogies, word relationships
- Spatial Reasoning — 2D/3D shape manipulation, symmetry, rotation
- Memory & Knowledge — General knowledge, factual recall, world knowledge
- Analogies — Relationship mapping between concepts
- Problem Solving — Applied math, real-world calculation, word problems
- Mathematics — Arithmetic, algebra, geometry, statistics
- Sequences — Alphabetic, numeric, and mixed pattern completion
How Is the IQ Score Calculated?
Your score is calculated based on the number of correct answers and the average difficulty of questions you were presented. The formula maps your accuracy and performance to the standard IQ scale (70–145), with 100 representing the average. A 30-second time limit per question adds a processing-speed component.
💡 Tip: For the best results, take the test in a quiet environment without distractions. Don't spend too long on any one question — your first instinct is often correct.