Chart: Visualising brightness

Above is the IQ chart I use in my seminars.

Download IQ chart (PDF – A4 printable)

This chart is also featured in the popular Australian book for gifted parents, Bright.

To cite this chart: Thompson, A. D. (2016). Bright: Seeing superstars, listening to their worlds, and moving out of the way. Life Architect.

 

IQ table (uses 15SD as in Wechsler)

IQ Percentile Top % 1 in…
200 99.999999998 0.000000002 4.8 billion
195 99.99999998 0.00000002 688 million
190 99.999999901 0.000000099 107 million
185 99.9999992 0.0000008 18 million
180 99.999995 0.000005 3.4 million
175 99.99997 0.00003 722,337
170 99.9998 0.0002 652,598
165 99.9992 0.0008 41,174
160 99.996 0.004 31,560
155 99.98 0.02 8,137
150 99.95 0.05 2,330
145 99.86 0.14 741
140 99.6 0.4 261
135 99 1 102
130 97.7 2.3 44
125 95.2 4.8 21
120 90.87 9.13 11