IQ MASTERPro
100% Free & Instant Results•
Scientific Unit Converter (100+ Metric & Imperial Units)•
Standardized Psychometric Model (Mean 100, SD 15)•
Precision Engineering Tools & SI Matrices•
Zero Ad Clutter • Local-First Privacy•
Offline PWA Application • 0ms Latency•
Item Response Theory (IRT) Calibrated•
Verifiable PDF Certified Report•
100% Free & Instant Results•
Scientific Unit Converter (100+ Metric & Imperial Units)•
Standardized Psychometric Model (Mean 100, SD 15)•
Precision Engineering Tools & SI Matrices•
Zero Ad Clutter • Local-First Privacy•
Offline PWA Application • 0ms Latency•
Item Response Theory (IRT) Calibrated•
Verifiable PDF Certified Report•
Standardized 2026 Psychometric Battery • Mean 100 (SD 15)

Standardized IQ Test, Scientific Unit Converter & Engineering Tools

Measure fluid intelligence with calibrated clinical item response theory and convert physics & engineering metrics with zero-latency precision calculators.

20 QsClinical Battery
100+ UnitsScientific Engine
6 DomainsNeuro Radar
100% FreeNo Paywalls

Candidate

Cognitive Explorer • Lvl 1

Latest IQ Score
100IQ
Standard Norm Baseline
Daily Momentum
1Days
0/5 Daily Tasks Done
Domain Plasticity VectorIRT Calibrated
Pattern Matrix (Fluid Gf)82%
Deductive Syllogisms78%
3D Spatial Rotation86%
Working Memory Span74%
~12-15 Mins
DAILY BONUS
Resets every 24h
🎁

Daily Reward Chest Unlocked!

Tap the treasure chest to claim your free daily gems and XP boost instantly. Maintain your streak to multiply synaptic rewards!

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Cognitive Badges & Achievements

Earn badges by hitting daily goals, maintaining streaks, and solving logic puzzles.

Total Unlocked9 / 16 (56%)
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Neuro-Training Tool Suites

Select an interactive cognitive training module calibrated for rapid neuroplasticity.

2026 Clinical

Official IQ Test Battery

20 psychometric questions measuring Fluid Gf, Spatial, Deductive, and Memory.

Start Test (~15m)
7 Game Modes

Mind & Logic Games

Speed Math, Memory Matrix, Stroop Interference, Spatial Rotation, Dual N-Back.

Explore Mind Hub
Visual Radar

Eye & Saccadic Games

Peripheral Radar, Eagle Eye, Flash Quantifier, and Chroma Gradient.

Sharpen Vision
PvP vs AI

User vs Computer Duel

Battle 6 distinct AI bots with escalating ELO ratings in real-time speed duels.

Enter Duel Arena
🎁
DAILY BONUS
Resets every 24h

Daily Reward Chest Unlocked!

Tap the treasure chest to claim your free daily gems and XP boost instantly.

🏆

Cognitive Badges & Achievements

Earn badges by hitting daily goals, maintaining streaks, and solving logic puzzles.

Total Unlocked16 / 10 (100%)

Daily Cognitive Protocol

Complete at least 3 daily neuro-exercises to maintain your 1-day streak and stimulate synaptic plasticity.

0/3 Goal Reached
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SPEED MEMORY
+150 XP

Memory Matrix Recall

Memorize flashing spatial coordinates and reproduce grid configurations.

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RAPID MATH
+150 XP

Speed Mental Arithmetic

Solve rapid quantitative calculations under 60-second chronometric sprints.

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EXECUTIVE TEST
+160 XP

Stroop Inhibition Battery

Inhibit automatic semantic reading impulses and pinpoint chromatic ink latency.

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3D ROTATION
+150 XP

3D Spatial Geometry

Mentally rotate complex isometric polyhedrons across 3D vector coordinates.

Cognitive Nutrition & Brain-Boosting Macros

Neuro-Nutrition & Fuel

Cognitive Nutrition & Brain-Boosting Macros

Total Fuel
290 kcal
Protein
23.0g

Macro Distribution

Protein (23g)30% Target
Carbohydrates (21g)Complex Energy
Healthy Fats (13g)Neuro-Protective

* Optimizing blood glucose and ketone availability preserves cognitive throughput during intensive mental tasks.

Recommended Brain Foods

2 Logged Today

Blueberries (1 cup)

High in anthocyanins; delays brain aging & improves memory.

84 kcal • 1g protein

Wild Salmon (100g)

Rich in Omega-3 (EPA/DHA) for neurogenesis & synaptic plasticity.

206 kcal • 22g protein

Walnuts (30g)

Alpha-linolenic acid (ALA) lowers blood pressure and protects arteries.

196 kcal • 4.3g protein

Dark Chocolate 85% (30g)

Flavonoids enhance blood flow to the hippocampus and memory centers.

170 kcal • 2.2g protein

Avocado (1/2)

Monounsaturated fats support healthy blood flow and cognitive vitality.

120 kcal • 1.5g protein

Scientific Unit Converter & Engineering Calculations

Precision Scientific & Engineering Unit Converter

Industrial-grade SI unit conversion across 10 physical dimensions.

Industrial & Academic Grade • Zero Latency

Scientific Unit Converter & Engineering Tools

High-precision metric (SI) and imperial measurement conversion matrices for physics, mechanical engineering, aerospace dynamics, computer science, and thermochemistry.

Decimals:

Source Magnitude & Unit

From m

Converted Result

3.28084Feet (ft)

Full Conversion Matrix for Length & Distance

Equivalent values for 1 m across all standardized SI and Imperial systems.

Base: Meter (m)
mMeters
1
kmKilometers
0.001
cmCentimeters
100
mmMillimeters
1,000
µmMicrometers (Microns)
1,000,000
nmNanometers
1,000,000,000
inInches
39.3701
ftFeet
3.2808
ydYards
1.0936
miMiles
0.0006
nmiNautical Miles
0.0005
lyLight Years
0

Psychometric & Physics Note: Precision measurement standards comply with NIST SP 811 and BIPM SI brochure 9th edition. All conversions execute 100% locally in browser memory with zero telemetry.

Intermittent Fasting & Autophagy Metronome

Autophagy & Ketosis Protocol

Intermittent Fasting & Autophagy Metronome

Current Fasting Window

01:30:20
Blood Sugar Stabilization
16:8 Protocol Progress9.4% (1h / 16h)
4 Hours
Digestion Rest
12 Hours
Ketosis Shift
16 Hours
Autophagy Peak
The Sovereign Scientific Difference

Why Choose IQ Master Over Generic Online Tests?

Most online IQ tests are predatory ad-traps that force credit card payment after 20 minutes of effort. IQ Master provides genuine psychometric calibration with full transparency.

Assessment Factor
IQ Master (Scientific)
Generic Ad-Trap TestsClinical In-Person Lab
Psychometric Calibration
Gaussian Normal Distribution (Mean 100, SD 15, IRT)
Arbitrary random number generator
Standard WAIS-IV / Stanford-Binet standardization
Cost & Access
100% Free & Unlimited Access
$19.99 hidden paywall at question 20
$800 – $2,500 clinical psychologist fee
Data Privacy & Offline Security
100% Local-First (Browser Storage / Zero Tracking)
Harvests email, sells data to ad brokers
HIPAA medical records storage
Cognitive Battery Domains
5 Core Domains (Pattern, Logic, Spatial, Verbal, Memory)
3 trivial riddle questions
Full 10-subtest battery
Daily Neuroplasticity Gym
5 Daily Interactive Cognitive Games + Streaks + XP
None (one-time funnel trick)
None (assessment only)
Psychometric Certificate & Archetypes
High-Resolution Vector PDF Certificate & Archetype Vector
Low-res watermarked JPEG for extra fee
Formal written psychological evaluation report
Ad-Free High-End Experience
Pure Ad-Free Light Theme UI • 0 Ads • 0 Popups
Overwhelmed with banner ads and clickbait
In-office physical testing room

Zero Backend Data Logging

Every test calculation is rendered purely in your browser memory. Your results remain 100% private.

Gaussian Bell Curve

Standard normal distribution mapped to real Mensa & WAIS-IV psychometric benchmarks.

Lifelong Brain Training

Maintain high processing speed, working memory capacity, and mental resilience daily.

Neuroscience & Psychometric Academy

Peer-reviewed insights into cognitive architecture, fluid reasoning, and brain performance.

Cattell-Horn-Carroll Theory

Fluid (Gf) vs. Crystallized (Gc) Intelligence

Fluid intelligence is the biological capacity to reason, solve novel abstract matrices, and identify relationships without relying on past acquired schooling. Crystallized intelligence represents stored verbal vocabulary, cultural knowledge, and declarative facts.

Key Scientific Insights:

  • ✓Fluid intelligence peaks in early adulthood but can be preserved through high cognitive demand exercises.
  • ✓Raven Progressive Matrices isolate Fluid Intelligence by utilizing non-verbal visual geometric arrays.
  • ✓Dual N-Back and working memory training stimulate prefrontal cortex synaptic density.

Empirical Rigor

All tests on IQ Master are designed around standard Cattell-Horn-Carroll (CHC) theory and item response theory (IRT).

⚡ Tip: Daily consistent micro-training produces superior working memory retention compared to occasional long cramming.
Frequently Asked Questions

Psychometrics & Scientific Methodology FAQ

Everything you need to know about fluid intelligence, scoring normalization, and privacy.

The Scientific Unit Converter covers 10 primary scientific and engineering domains: Length (metric nanometers to light years & imperial yards), Mass & Weight (micrograms to metric tonnes, lbs, stones), Thermodynamic Temperature (°C, °F, Kelvin, Rankine), Fluid & Gas Pressure (Pascals, bar, psi, Torr, standard atmospheres), Energy & Work (Joules, kWh, calories, eV, BTU), Power (Watts, hp), Digital Data (Bytes, MB, GiB, Terabytes), Speed, Force (Newtons, lbf), and Cross-sectional Area.