IQ 149

In a town of 100,000 people, the bell curve expects only about 54 at 149 or higher. That rarity, about 1 in 1,838, is what puts 149 in the highly gifted range.

Highly gifted is mostly an education term. For a child it usually signals needing more than standard enrichment, such as acceleration or specialist teaching.

A very high score is not a forecast. Eminence depends on years of work, opportunity, collaborators and luck as much as on ability.

There is no single experience of a 149. The points below are patterns often described by people in this range and by those who teach them, not a checklist.

• Complex ideas can click after one explanation, which makes slow-paced teaching feel frustrating.
• Interests can be intense and deep, sometimes at the cost of everything else.
• None of this is guaranteed. Many people at this level feel ordinary most of the time.

Major adult tests are normed on samples of a couple of thousand people. In a 2,200-person norm sample, the bell curve expects only about 1 at 149 or higher, so the top of the scale rests partly on extrapolation.

Margins of error widen at the extremes, so a reported score here is less precise than the roughly 5 points either side that is typical near the middle.

Short online tests, including ours, are best at telling you roughly where you are. Treat a 149 from one as "well above 140" rather than an exact figure.

If IQ follows the standard bell curve, 0.054% of people score 149 or higher. Here is what that share means across whole populations:

Going from 144 to 149 makes a score 3.1 times rarer, and going on to 154 multiplies the rarity by another 3.4. Near 149, each single point adds about 27% to the rarity.

What your 149 could really be. If you retook a well-made test, landing at 144 or at 154 would be unremarkable. That is the difference between beating 99.83% and 99.98% of people, and short online tests are noisier still.

Which scale was it on? A 149 reported on an SD 16 scale converts to about 146 on the usual SD 15 scale, and one from an SD 24 scale (seen in some Cattell-style results) to about 131. Check which scale your score report used.

Scientists, composers and philosophers often receive estimates in this range. These sit near 149. Treat these as informed guesses from biographies rather than results. Each profile sets out what its estimate rests on.

The scores one and five points either side of 149, plus the round numbers from 100 to 150, side by side. Tap any score for its full page.

People with an IQ of 149 typically score about 1590 on the SAT and about 35 on the ACT composite. Scores vary a lot from person to person, so the range shows where about four in five land.