GuideIQTake the test

    Online IQ test · results in minutes

    GuideIQ

    Discover your IQ with clarity — a fast, serious test that's easy to understand

    This free online IQ test measures logical reasoning and mental speed in about 3 minutes. Then see your IQ score, percentile, and where you stand — no email required.

    How it worksIQ guides

    No complicated signup · free estimated score right away

    In 3 steps

    How the test works

    Simple, quick, and with a result you can actually interpret

    Step 1

    Answer 30 questions

    Logical reasoning, patterns, and speed — at your pace, in a few minutes.

    Step 2

    See a preview of your level

    Understand your band before unlocking the exact IQ score and full analysis.

    Step 3

    Unlock the full result

    IQ, percentile, ranking, and a clear reading of your cognitive performance.

    Explore GuideIQ

    Test, compare national averages, and read practical guides on intelligence

    IQ TEST

    Take the test now

    Get your IQ estimate, percentile, and analysis — in about 3 minutes.

    Start →

    GLOBAL DATA

    Average IQ by country

    See the world ranking and where the United States sits on the table.

    View ranking →

    PRACTICAL GUIDE

    What's my IQ?

    Find your score, understand the ranges, and know what to do with the result.

    Read guide →

    COMPARISONS

    Highest IQ ever recorded

    Context on famous scores, claims, and what the extremes really mean.

    Explore →

    RELIABILITY

    Are IQ tests accurate?

    How to judge a serious online test and read a score without overclaiming.

    Learn more →

    HOW IT WORKS

    How GuideIQ works

    What we measure, how long it takes, and what the full report includes.

    See details →

    Global data

    Average IQ by country

    Commonly cited national IQ estimates from compiled datasets. See how the United States compares — and why these averages deserve careful reading.

    Top 10

    1.Singapore
    108
    2.Hong Kong
    108
    3.Taiwan
    106
    4.South Korea
    106
    5.Japan
    105
    6.China
    104
    7.Slovenia
    103
    8.Switzerland
    102
    9.Netherlands
    102
    10.North Korea
    102

    Ranks 11–20

    11.Macau
    101
    12.Iceland
    101
    13.Finland
    101
    14.Canada
    101
    15.Belgium
    100
    16.Germany
    100
    17.United Kingdom
    100
    18.Austria
    100
    19.New Zealand
    100
    20.Israel
    100

    Ranks 21–30

    21.Malta
    99
    22.Slovakia
    99
    23.Norway
    99
    24.Sweden
    99
    25.Luxembourg
    99
    26.Denmark
    99
    27.Czech Republic
    99
    28.United States
    98
    29.Australia
    99
    30.France
    98
    Read the article

    United States

    Compiled estimate ≈ 98 (around rank 28)

    98

    Average IQ

    Published estimates place the U.S. near the middle of the table. Treat the exact number loosely — your own score says far more than any national average. The reference mean on standard IQ scales is 100.

    Note: National averages have sampling limits and inconsistent methods across sources. Your individual result can differ substantially.

    IQ science

    IQ distribution in the population

    Understand the normal curve and which range you might fall into

    IQ score distribution

    5570851001151301450.1%2%14%34%34%14%2%0.1%68%95%

    Average IQ: 100 | Standard deviation: 15

    34% (85–100 and 100–115)14% (70–85 and 115–130)2% (55–70 and 130–145)
    68%
    IQ 85–115
    95%
    IQ 70–130
    2%
    IQ 130+

    Why take this IQ test?

    GuideIQ presents challenging reasoning items designed to measure fluid intelligence — spotting patterns, drawing inferences, and solving novel problems — and to return an estimated score on the familiar IQ scale.

    Take it on any phone or computer, in a quiet few minutes. Right after you finish, you get an estimated score. The full report places that score on the distribution and shows which reasoning domain you handled best.

    Understand your place on the curve

    • IQ 55–70: 2% of the population (below average)
    • IQ 70–85: 14% of the population (low average)
    • IQ 85–100: 34% of the population (average)
    • IQ 100–115: 34% of the population (above average)
    • IQ 115–130: 14% of the population (high)
    • IQ 130–145: 2% of the population (gifted)
    • IQ 145+: 0.1% of the population (very superior)

    Why IQ scores follow a bell curve

    The shape is by design. Raw test performance is converted onto a normal curve with a mean of 100 and a standard deviation of 15. That calibration produces the familiar figures: about 68% of the reference population between 85 and 115, about 95% between 70 and 130, and roughly 2% above 130. An IQ score does not measure a fixed quantity of intelligence — it ranks your reasoning performance against the group the test was normed on. Read more in our IQ score chart and what is IQ guides.

    What you unlock in the full report

    Exact IQ, percentile, and a clear reading of your performance

    Your exact IQ score

    A precise estimate based on your full 30-question performance

    Your percentile

    See how many people you scored above on the standard distribution

    Celebrity comparison

    Public figures whose widely reported estimates sit near your score

    Your strongest reasoning domain

    Whether you scored highest on patterns, logic, numbers, or words

    Shareable result badge

    Post your score or challenge a friend who thinks they'd beat it

    Frequently Asked Questions

    Straight answers about timing, scoring, the full report, and your data.

    View all FAQs

    Ready. Let's test that brain.

    Three minutes to learn something you didn't know about how you reason

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