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IQ Octopus

Tools

Small, free calculators for the IQ scale. They do the normal-curve math for you: no sign-up, nothing stored.

Want your own number? The test is 25 visual puzzles, about 12 minutes, no sign-up.

Calculators

106 score pages

What a score means

A page for each common score, with its percentile, rarity, classification and what it does and does not predict.

See them all on the IQ score chart

25 puzzles · about 12 min

Find your IQ in 12 minutes.

25 visual puzzles, free to take. Your full result, with your estimated IQ, percentile and five-area breakdown, is $4.95 one time.

Free to take. Full result $4.95, one time. No subscription.