100% Free

What's Your IQ Score?

Free 30-question IQ test across 5 cognitive domains. Age-calibrated score + percentile rank.

Built on the WAIS-5

The gold-standard clinical IQ test used by psychologists worldwide.

25 minutes 30 questions Secure Always free
Try a real IQ question

Can You Solve This?

Logical ReasoningMedium
1 / 5

What number comes next in the sequence?

261854?
A108
B144
C162
D216

Your final report

IQ Score Report
Complete

Estimated IQ

127

97th percentile

Finish to reveal
Verbal
82%
Logical
76%
Quantitative
68%
Visual-Spatial
91%
Working
74%
Get Your IQ — Free
Ages 6–80+
Supported age range
5 Domains
Cognitive areas measured
WAIS-5 Style
Psychometric structure
Always free
No hidden costs
What we measure

Five Cognitive Domains

Each domain is independently scored, normed for your age group, and visualized on a pentagon chart — showing exactly where you excel and where to grow.

Verbal Reasoning

Vocabulary, analogies & comprehension

6 questions

Logical Reasoning

Patterns, deduction & syllogisms

6 questions

Quantitative

Numerical reasoning & applied math

6 questions

Visual-Spatial

Mental rotation & geometry

6 questions

Working Memory

Attention span & recall

6 questions

Step by step

How It Works

From start to full cognitive profile in under 30 minutes — completely free.

01

Enter Your Age

No account required. Enter your age and the system selects the right question set with age-calibrated scoring norms for your stage.

Supports ages 6–80+. Each age band uses dedicated questions and norms.

02

Take the Assessment

30 questions across 5 cognitive domains in 25 minutes. Questions interleave domains each round — exactly like WAIS-5.

Server-controlled timer. Answers autosave after every response.

03

Unlock Your Full Profile

After the test, create a free account to reveal your score, percentile rank, pentagon chart, and narrative analysis.

Or pay $3.99 to get everything delivered to your inbox with no account needed.

Everything included — free

Your Complete Profile, At No Cost

Create a free account after the test to unlock all of this. No credit card, no trial, no catch.

Estimated IQ Score

Composite score with age-calibrated percentile ranking.

5-Domain Pentagon Chart

Visual radar chart across all five cognitive domains.

Strengths & Growth Areas

Narrative analysis of where you excel and where to grow.

Timing Analysis

Speed and consistency metrics across all 30 questions.

Domain Breakdown

Per-domain scores, percentiles, and item-level detail.

Secure & Private

Row-level security. Only you can access your results.

Take the Free Test Now

No signup required to start · Results unlock free with an account

How we compare

Serious Structure, No Price Tag

Most online IQ tests are guesses. We use the same domain structure as the gold-standard Wechsler scales — without the $300+ clinical fee.

Typical Online IQ Tests

  • Single-domain questions
  • No age calibration
  • Inflated scores
  • No confidence interval
  • No domain breakdown
Best Free Option

IQ Test Center (Free)

  • 5-domain WAIS-style structure
  • Age-calibrated norms (6–80+)
  • Confidence interval shown
  • Pentagon domain chart
  • Narrative strengths analysis

Clinical WAIS-5 Test

  • Professionally administered
  • Full psychometric validity
  • 10-domain battery
  • 2–4 hour session
  • Costs $300–$800+
Got questions?

Frequently Asked Questions

Is this IQ test really free?
Yes — completely. The 30-question test and full results are free. Create a free account with Google or email after the test to unlock everything. The only paid option is $3.99 if you prefer not to create an account and want your report emailed instead.
How long does the test take?
The adult version (18+) has 30 questions with a 25-minute server-controlled timer. Child variants are shorter. You cannot pause the timer once started, so plan accordingly.
Do I need to sign up before taking the test?
No. You can start immediately — just enter your age and begin. The signup step comes only after you finish, and only if you want to see your results. You can also skip signup entirely by paying $3.99 for email delivery.
How accurate is the score?
Scores are estimated using age-calibrated norm tables across five domains, with a confidence interval of roughly ±8–12 points. They're reliable for personal insight and domain comparison — but are not a substitute for a professional clinical evaluation (WAIS-5, Stanford-Binet, etc.).
What age ranges does the test support?
Ages 6 through 80+. Each age band (6–9, 10–12, 13–15, 16–17, 18–54, 55+) uses a dedicated question set and scoring norms calibrated for that developmental stage.
Can I retake the test?
Yes. Each session is scored independently. Keep in mind that familiarity with question types can slightly inflate repeat scores — a known limitation of any repeatable assessment.
Ready to begin?

Discover Your Cognitive Profile

30 questions. 25 minutes. Free results. No signup until the end. Find out how your mind works across five domains.

No credit card No email to start Results in minutes

This assessment provides estimated cognitive performance scores for personal insight and educational purposes only. It is not a clinical instrument, has not been professionally validated, and should not be used for diagnostic, hiring, or placement decisions.

IQ Test Center — Free IQ Test Online