Free IQ practice tests
& score guide
Learn what IQ numbers mean and try original reasoning questions. Every answer includes an explanation. No signup, no fees, and no locked results.
Start a free reasoning test
Five separate 48-question tests: 240 questions in total, with no repeated questions between numbered tests. Each test contains 12 questions per reasoning category. Custom practice also offers shorter and focused sets. “Challenge” means harder exercises in this collection, not a standardized ability classification. Retaking the same test repeats its questions, with question and answer order shuffled.
Numbered tests have 48 questions (48 minutes if timed). Custom category sets have 12 questions. You can mark questions for review and revisit answers before finishing. In Learn mode, checking an answer locks that response and reveals its explanation. Tab saving is enabled; answers are not sent to a server.
IQ scores & percentiles
Explore the bell curve and learn why 100 is the average reference score.
Know the contextWhat IQ can tell you
Understand standardized testing, score uncertainty, and the limits of online practice.
Take the 1917 Army Alpha test
Try original questions from the written test the U.S. Army gave to more than 1.7 million World War I recruits, with the original time limits and 1918 answer key.
Try the Army AlphaPractice four kinds of reasoning
Number
Identify numerical relationships and sequences.
Verbal
Explore analogies, word meanings, and categories.
Logic
Draw conclusions from stated rules and conditions.
Patterns
Follow repeating shapes, letters, and grid rules.
These exercises cover a limited set of skills. They do not assess all domains of a professional intelligence test.