50.0 %
Smarter than 50.0% of people
Average
Average range, where about half of people score · Rarer than 1 in 2
🏛️ Mensa cutoff 130 — 30 points away
🌍 In the United States (national average ≈ 98, an estimate from test samples), an IQ of 100 is in the top 44.7%.
❓ FAQ
Is an IQ of 100 a good score?
An IQ of 100 falls in the "Average" range and is higher than 50.0% of the population.
What percentile is an IQ of 100?
An IQ of 100 sits at the 50.0th percentile — the top 50.0% of the population. Roughly 1 in 2 people score this high.
Can you join Mensa with an IQ of 100?
Mensa requires roughly IQ 130 (top 2% on SD15); 100 is 30 points below the cutoff. Practice and a supervised test may close the gap.
How many people have an IQ of 100 or higher?
Roughly 4,049,999,996 people worldwide — about 50.0% of 8.1 billion.